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URL: https://oeis.org/A113717

⇱ A113717 - OEIS

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A113717
Column 1 of triangle A113716, in which row n forms a polynomial in y=3*k that generates diagonal n as k=0,1,2,... for n>=0.
3
1, 4, 22, 157, 1372, 14008, 161995, 2079994, 29268778, 447355381, 7378113658, 130623533086, 2471708825851, 49801573782382, 1064903759520232, 24092915169822295, 575151611909110366, 14450636276353406074
OFFSET
0,2
FORMULA
a(n) = Sum_{j=0..n} A113716(n, j)*3^j.
CROSSREFS
Cf. A113716, A113718 (column 2), A113719 (row sums).
Sequence in context: A112697 A327994 A392744 * A379933 A124563 A122704
KEYWORD
nonn
AUTHOR
Paul D. Hanna, Nov 08 2005
STATUS
approved