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

Author

Paul Barry, Apr 04 2011

Keywords

• nonn
• easy

Crossrefs

Cf. A001710.

Formula

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

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