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Search: id:A141590
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| 1, 1, -1, 1, -1, 1, -691, 1, -3617, 43867, -174611, 77683, -236364091, 657931, -3392780147, 1723168255201, -7709321041217, 151628697551, -26315271553053477373, 154210205991661, -261082718496449122051, 1520097643918070802691, -2530297234481911294093
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OFFSET
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0,7
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COMMENT
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Numerators of the Taylor expansion coefficients of the Debye function D(1,x) at the even powers of x.
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FORMULA
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a(n) = A120082(2n).
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MAPLE
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A120082 := proc(n) local b; if n = 0 then b := 1 ; elif n = 1 then b := -1/4 ; elif type(n, 'odd') then b := 0; else b := bernoulli(n)/(n+1)! ; fi; numer(b) ; end:
A141590 := proc(n) A120082(2*n) ; end: seq(A141590(n), n=0..30) ; # R. J. Mathar, Sep 03 2009
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CROSSREFS
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Cf. A000367.
Sequence in context: A141588 A046968 A001067 this_sequence A046988 A029825 A159283
Adjacent sequences: A141587 A141588 A141589 this_sequence A141591 A141592 A141593
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KEYWORD
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sign
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AUTHOR
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Paul Curtz (bpcrtz(AT)free.fr), Aug 20 2008
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EXTENSIONS
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Edited and extended by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Sep 03 2009
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