A144894 Third column (m=3) of triangle A144891 (S1hat(5)).

1, 5, 55, 485, 4380, 39570, 421800, 4265100, 49455000, 594001800, 7784683200, 107814672000, 1624964544000, 25881953328000, 443107288512000, 8028628336512000, 154539996629760000, 3135393617489280000, 67045955961922560000, 1503619681171829760000, 35321502985569884160000

Offset

0,2

Links

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

Formula

a(n) = A144891(n+3,3), n>=0.

Crossrefs

Cf. A144891, A001720 (first column), A144893 (second column).

Sequence in context: A306095 A081300 A190543 * A247775 A045640 A043040

Adjacent sequences: A144891 A144892 A144893 * A144895 A144896 A144897

Keyword

nonn,easy

Author

Wolfdieter Lang, Oct 09 2008

Status

approved