A144889 Third column (m=3) of triangle A144886 (S1hat(4))

1, 4, 36, 264, 2040, 16000, 149600, 1362240, 14326080, 158438400, 1931731200, 25155648000, 357727910400, 5420614348800, 88408793088000, 1532112261120000, 28238983686144000, 549825606070272000, 11292931674759168000, 243644152971018240000, 5511211980392079360000

Offset

0,2

Links

Table of n, a(n) for n=0..20.

Formula

a(n) = A144886(n+3,3), n>=0.

Crossrefs

Cf. A144888 (second column).

Sequence in context: A075144 A183496 A043024 * A176097 A345633 A173429

Adjacent sequences: A144886 A144887 A144888 * A144890 A144891 A144892

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 09 2008

Status

approved