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Search: id:A152802
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| 1, 3, 10, 41, 172, 749, 3332, 15041, 68640, 315840, 1462798, 6810588, 31846811, 149459541, 703592472, 3321019270, 15711717162, 74482623635, 353723268817, 1682536854931, 8014676326925, 38226681972410, 182538225520073
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OFFSET
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0,2
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COMMENT
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Triangle A152800 gives a q-analog of the Euler numbers.
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PROGRAM
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(PARI) {a(n)=polcoeff(polcoeff(1/sum(m=0, n+2, (-1)^m*x^(2*m)/prod(j=1, 2*m, (q^j-1)/(q-1))+x*O(x^(2*n+4))), 2*n+4, x)*prod(j=1, 2*n+4, (q^j-1)/(q-1)), 2*n+1, q)}
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CROSSREFS
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Cf. A152800; A152801.
Sequence in context: A151080 A153474 A151081 this_sequence A151082 A151083 A140046
Adjacent sequences: A152799 A152800 A152801 this_sequence A152803 A152804 A152805
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KEYWORD
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nonn
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AUTHOR
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Paul D. Hanna (pauldhanna(AT)juno.com), Dec 26 2008
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