A294341 E.g.f.: exp(Sum_{n>=1} A010815(n)*x^n/n).

1, -1, 0, 2, -2, 18, -128, 740, -3204, -6076, 210304, -1097064, -29284760, 398231768, 792490752, -124480674448, 1471405254928, -2684728872720, -64686947480576, -626709774748384, -10524779012515104, 689522178752789024, 34910956277827256320

Offset

0,4

Links

Seiichi Manyama, Table of n, a(n) for n = 0..451

Formula

a(0) = 1 and a(n) = (n-1)! * Sum_{k=1..n} A010815(k)*a(n-k)/(n-k)! for n > 0.

Crossrefs

Cf. A294260.

Sequence in context: A201124 A173785 A264715 * A318418 A184317 A141084

Adjacent sequences: A294338 A294339 A294340 * A294342 A294343 A294344

Keyword

sign

Author

Seiichi Manyama, Oct 28 2017

Status

approved