A090135 E.g.f.: exp(1-(-1+2*(1-2*x)^(1/2))^(1/2)).

1, 3, 16, 124, 1266, 16081, 244798, 4349556, 88445899, 2027133271, 51732933726, 1455469821763, 44769397616386, 1495012542977409, 53873142910303291, 2083965434325009511, 86141049679863875223, 3789452627584599490156

Offset

1,2

Links

Table of n, a(n) for n=1..18.

Formula

a(n) ~ n^(n-1)*2^(3*n-1)/(exp(n-1)*3^(n-1/2)). - Vaclav Kotesovec, Jun 26 2013

Crossrefs

Sequence in context: A087018 A005119 A190291 * A351423 A188417 A327826

Adjacent sequences: A090132 A090133 A090134 * A090136 A090137 A090138

Keyword

nonn

Author

Karol A. Penson, Nov 26 2003

Status

approved