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A144896 Third column of triangle A134134 (S2'(2)= S1hat(2)). 1
1, 2, 10, 44, 228, 1272, 8760, 63936, 547776, 5145984, 54233280, 624291840, 7879472640, 107423677440, 1579212910080, 24832164556800, 416273901926400, 7403098797158400, 139238590721126400, 2760253302701260800, 57522218527420416000, 1256931901812400128000 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..21.

FORMULA

a(n)=A134134(n+3,3), n>=0.

CROSSREFS

A000142 (factorials, first column). A144895 (second column)

Sequence in context: A084609 A105485 A151313 * A142983 A227852 A065805

Adjacent sequences:  A144893 A144894 A144895 * A144897 A144898 A144899

KEYWORD

nonn,easy

AUTHOR

Wolfdieter Lang Oct 09 2008

STATUS

approved

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Last modified May 24 06:53 EDT 2019. Contains 323529 sequences. (Running on oeis4.)