A144277 Second column (m=2) of triangle S2hat(-2) = A144275.

1, 2, 14, 100, 1140, 14880, 249280, 4801280, 108574400, 2767072000, 79286592000, 2508856627200, 87115395136000, 3287694620672000, 134073047499776000, 5872147278807040000, 274939690654024704000, 13701683362561818624000, 724128149433185136640000

Offset

0,2

Links

Table of n, a(n) for n=0..18.

Formula

a(n) = A144275(n+2,2), n>=0.

Crossrefs

Cf. A144275, A008544 (m=1 column), A144278 (m=3 column).

Sequence in context: A360319 A074620 A185010 * A037726 A037621 A085372

Adjacent sequences: A144274 A144275 A144276 * A144278 A144279 A144280

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 09 2008

Status

approved