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 A270669 E.g.f.: Product_{k>=1} (1 + sinh(k*x^k)). 2
 1, 1, 4, 31, 168, 1841, 19320, 226885, 2655408, 47569681, 743996880, 12582916061, 245804712120, 4831304993113, 109782586920552, 2669560767444901, 61579705719702240, 1566459883903878305, 44585240861695115808, 1212424119941953292461, 37517727808419084095400 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Vaclav Kotesovec, Table of n, a(n) for n = 0..430 MATHEMATICA nn = 25; Range[0, nn]! * CoefficientList[Series[Product[1+Sinh[k*x^k], {k, 1, nn}], {x, 0, nn}], x] CROSSREFS Cf. A082579, A130220, A130263, A255807, A270294, A270670. Sequence in context: A281832 A299076 A270670 * A298996 A299663 A005216 Adjacent sequences:  A270666 A270667 A270668 * A270670 A270671 A270672 KEYWORD nonn AUTHOR Vaclav Kotesovec, Mar 21 2016 STATUS approved

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Last modified September 22 16:41 EDT 2019. Contains 327311 sequences. (Running on oeis4.)