A188588 Row sums of 1-Euler triangle A188587.

1, 2, 3, 12, 60, 360, 2520, 20160, 181440, 1814400, 19958400, 239500800, 3113510400, 43589145600, 653837184000, 10461394944000, 177843714048000, 3201186852864000, 60822550204416000, 1216451004088320000, 25545471085854720000

Offset

0,2

Links

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

Formula

a(n) = (n+1)*A001710(n).

a(n) = (n+1)*a(n-1), n>2.

Crossrefs

Cf. A001710.

Sequence in context: A191464 A052183 A123899 * A032133 A155579 A353163

Adjacent sequences: A188585 A188586 A188587 * A188589 A188590 A188591

Keyword

nonn,easy

Author

Paul Barry, Apr 04 2011

Status

approved