A055925 Exponential reciprocal of A055924.

-1, 1, 0, -2, 0, 1, 6, 0, -6, 1, -24, 0, 35, -10, -2, 120, 0, -225, 85, 30, -9, -720, 0, 1624, -735, -350, 189, -9, 5040, 0, -13132, 6769, 3920, -2898, 252, 50, -40320, 0, 118124, -67284, -44898, 40824, -4914, -1800, 267, 362880, 0, -1172700, 723680

Offset

1,4

Links

Table of n, a(n) for n=1..49.

Formula

E.g.f.: exp(1-(1+x)^y).

Example

-1; 1,0; -2,0,1; 6,0,-6,1; -24,0,35,-10,-2; ...

Crossrefs

Main diagonal gives A000587.

Sequence in context: A344392 A331787 A321686 * A276436 A161121 A021500

Adjacent sequences: A055922 A055923 A055924 * A055926 A055927 A055928

Keyword

sign,tabl

Author

Wouter Meeussen, Christian G. Bower, Jul 06 2000

Status

approved