This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A372508 #5 May 04 2024 14:59:32 %S A372508 0,1,0,2,1,12,6,128,78,1872,1613,37600,38336,990784,1124280,32333824, %T A372508 41622181,1272660224,1843050734,59527313920,94591980910,3252626013184, %U A372508 5602035320753,204354574172160,380190518533920,14594815769038848,29179899891380592,1174376539738169344 %N A372508 Expansion of e.g.f. exp(sinh(x)) - exp(cosh(x) - 1). %C A372508 Number of partitions of n-set into odd blocks minus number of partitions of n-set into even blocks. %t A372508 nmax = 27; CoefficientList[Series[Exp[Sinh[x]] - Exp[Cosh[x] - 1], {x, 0, nmax}], x] Range[0, nmax]! %Y A372508 Cf. A000110, A003724, A005046. %K A372508 nonn %O A372508 0,4 %A A372508 _Ilya Gutkovskiy_, May 04 2024