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A113718 Column 2 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. +0
4
1, 7, 61, 601, 6595, 79981, 1065589, 15495415, 244303729, 4150355713, 75565751587, 1467738869713, 30293536617097, 662150899215079, 15282101338843129, 371439268964362789, 9485239068692006047 (list; graph; listen)
OFFSET

0,2

FORMULA

a(n) = Sum_{j=0..n} A113716(n, j)*6^j.

CROSSREFS

Cf. A113716, A113717 (column 1), A113719 (row sums).

Sequence in context: A066443 A108448 A098659 this_sequence A077642 A071172 A127688

Adjacent sequences: A113715 A113716 A113717 this_sequence A113719 A113720 A113721

KEYWORD

nonn

AUTHOR

Paul D. Hanna (pauldhanna(AT)juno.com), Nov 08 2005

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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