A131912 Row sums of triangle A131911.

1, 7, 12, 18, 23, 29, 34, 40, 45, 51, 56, 62, 67, 73, 78, 84, 89, 95, 100, 106, 111, 117, 122, 128, 133, 139, 144, 150, 155, 161, 166, 172, 177, 183, 188, 194, 199, 205, 210, 216, 221, 227, 232, 238, 243, 249, 254, 260, 265, 271, 276, 282, 287, 293, 298

Offset: 1

Author

Gary W. Adamson, Jul 27 2007

Keywords

• nonn

Examples

			a(4) = 18 = sum of row 4 terms, triangle A131911: (8 + 1 + 2 + 7).
a(4) = 18 = (1, 3, 3, 1) dot (1, 6, -1, 2) = (1 + 18 -3, 2).
		

Crossrefs

Cf. A131911.

Formula

Binomial transform of (1, 6, -1, 2, -4, 8, -16, ...).

a(n) = 11*n - a(n-1) - 14 (with a(1)=1). - Vincenzo Librandi, Nov 23 2010