A144887 Row sums of triangle A144886 (S1hat(4)).

1, 5, 25, 161, 1081, 8745, 75305, 741961, 7904201, 93174025, 1185282185, 16364262281, 242055376521, 3834244039305, 64590031280265, 1154392672267401, 21796700933039241, 433694961594395785, 9066521908425387145, 198692729793556061321

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Formula

a(n) = Sum_{m=1..n} A144886(n,m), n>=1.

Crossrefs

Cf. A144886.

Sequence in context: A356599 A137963 A366435 * A181344 A361916 A356596

Adjacent sequences: A144884 A144885 A144886 * A144888 A144889 A144890

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 09 2008

Status

approved