A091153 Third column of triangle A091150, in which the n-th row lists the coefficients of the polynomial of degree n that generates the n-th diagonal.

1, 4, 16, 67, 298, 1414, 7177, 39016, 227074, 1412233, 9359110, 65877178, 490870183, 3859788706, 31935828166, 277326346945, 2521757765632, 23961974750980, 237491787270343, 2451092004316246, 26302725994187392

Offset

0,2

Links

Table of n, a(n) for n=0..20.

Formula

a(n) = sum_{k=0..n} A091150(n, k)*3^k.

Example

a(3)=67=(1)+(4)3+(3)3^2+(1)3^3 since 3rd row of A091150 is {1,4,3,1}.

Crossrefs

Cf. A091150, A091151, A091152.

Sequence in context: A183275 A024551 A261048 * A270765 A292759 A351049

Adjacent sequences: A091150 A091151 A091152 * A091154 A091155 A091156

Keyword

nonn

Author

Paul D. Hanna, Dec 22 2003

Status

approved