<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0034-7426</journal-id>
<journal-title><![CDATA[Revista Colombiana de Matemáticas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.colomb.mat.]]></abbrev-journal-title>
<issn>0034-7426</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia y Sociedad Colombiana de Matemáticas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74262022000200133</article-id>
<article-id pub-id-type="doi">10.15446/recolma.v56n2.108370</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Palindromic and Colored Superdiagonal Compositions]]></article-title>
<article-title xml:lang="es"><![CDATA[Composiciones Superdiagonales Palíndromas y Coloreadas]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mantilla]]></surname>
<given-names><![CDATA[Jazmín L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olaya-León]]></surname>
<given-names><![CDATA[Wilson]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez]]></surname>
<given-names><![CDATA[José L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Industrial de Santander  ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia  ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>56</volume>
<numero>2</numero>
<fpage>133</fpage>
<lpage>143</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74262022000200133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74262022000200133&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74262022000200133&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A superdiagonal composition is one in which the i-th part or summand is of size greater than or equal to i. In this paper, we study the number of palindromic superdiagonal compositions and colored superdiagonal compositions. In particular, we give generating functions and explicit combinatorial formulas involving binomial coefficients and Stirling numbers of the first kind.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Una composición superdiagonal es aquella composición en la que la i-ésima parte (o sumando) tiene un tamaño mayor o igual que i. En este artículo, estudiamos el número de composiciones superdiagonales palindrómicas y composiciones superdiagonales coloreadas. En particular, damos funciones generatrices y fórmulas combinatorias explícitas que involucran coeficientes binomiales y números de Stirling de la primera clase.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Compositions]]></kwd>
<kwd lng="en"><![CDATA[palindromic compositions]]></kwd>
<kwd lng="en"><![CDATA[colored compositions]]></kwd>
<kwd lng="en"><![CDATA[generating functions]]></kwd>
<kwd lng="en"><![CDATA[combinatorial identities]]></kwd>
<kwd lng="es"><![CDATA[Composiciones]]></kwd>
<kwd lng="es"><![CDATA[composiciones palíndromas]]></kwd>
<kwd lng="es"><![CDATA[composiciones coloreadas]]></kwd>
<kwd lng="es"><![CDATA[funciones generatrices]]></kwd>
<kwd lng="es"><![CDATA[identidades combinatorias]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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