A133914 Row sums of triangle A133913.

1, 3, 5, 11, 23, 44, 89, 177, 355, 711, 1420, 2841, 5683, 11367, 22731, 45463, 90925, 181851, 363703, 727404, 1454809, 2909617, 5819235, 11638471, 23276940, 46553881, 93107763, 186215527, 372431051, 744862103, 1489724205, 2979448411, 5958896823, 11917793644

Offset: 1

Author

Gary W. Adamson, Sep 28 2007

Keywords

• nonn

Examples

			a(4) = 11 = sum of row 4 terms of triangle A133913: (1 + 4 + 4 + 2).
a(4) = 11 = 2*a(3) + A133912(4) = 2*5 + 1, where A133912 = (1, 1, -1, 1, 1, -2, 1, -1, ...), first finite difference row of A007001.
		

Crossrefs

Cf. A007001, A133912, A133913.

Formula

a(n) = 2 * a(n-1) + A133912(n). - Jack W Grahl, Oct 11 2022

Extensions

More terms from Jack W Grahl, Oct 11 2022