A145358 Row sums of triangle A145357 and of array A145356.

1, 7, 49, 421, 3697, 37933, 404341, 4841341, 61291861, 848268421, 12465197269, 197121724549, 3302727019621, 58876330343173, 1107627703783909, 21990846791015845, 458649487144877029, 10035575758396240549, 229687317927141716005, 5489966024995169233573

Offset: 1

Author

Wolfdieter Lang, Oct 17 2008

Keywords

• nonn
• easy

Crossrefs

Cf. A145356, A145357.

Formula

a(n) = Sum_{m=1..n} A145357(n,m).

Extensions

Changed offset from 0 to 1 by Wolfdieter Lang, Nov 17 2008