A134418 Row sums of triangle A134417.

1, 5, 14, 48, 152, 496, 1600, 5184, 16768, 54272, 175616, 568320, 1839104, 5951488

Offset: 1

Author

Gary W. Adamson, Oct 24 2007

Keywords

• nonn

Examples

			a(4) = 48 = sum of row 4 terms of triangle A134417: (1 + 12 + 15 + 20).
a(4) = 48 = (1, 3, 3, 1) dot (1, 4, 5, 20), given A133632 = (1, 4, 5, 20, 25, 100, ...).
a(3) = 14 = (1, -2, 1) dot (1, 6, 25), = (1, -12, 25), where A048875 = (1, 6, 25, 106, 449, 1902, ...).
		

Links

• Index entries for linear recurrences with constant coefficients, signature (2, 4).

Crossrefs

Cf. A133632, A134417, A048875.

Cf. A048875.

Formula

Row sums of triangle A134417. Binomial transform of A133632. Inverse binomial transform of A048875.

Inverse binomial transform of A048875: (l, 6, 25, 106, 449, ...). - Gary W. Adamson, Nov 23 2007

G.f.: (1+3*x)/(1-2*x-4*x^2). - Vladimir Kruchinin, May 06 2011