A151615 Row sums of A057282.

2, 22, 360, 7880, 216240, 7124880, 273463680

Offset

1,1

Links

Table of n, a(n) for n=1..7.

Maple

# read in A057282 as list called s1
f:=n->add(s1[i], i=n*(n-1)/2+1..n*(n+1)/2); [seq(f(n), n=1..7)];

Crossrefs

Sequence in context: A363006 A363304 A078232 * A111985 A378743 A265860

Adjacent sequences: A151612 A151613 A151614 * A151616 A151617 A151618

Keyword

nonn

Author

N. J. A. Sloane, May 29 2009

Status

approved