A086630 Main diagonal of square table A086629; coefficients of x^n*y^n in f(x,y) that satisfies f(x,y) = 1/[(1-x)(1-y)] + xy*f(x,y)^3.

1, 2, 13, 124, 1419, 18037, 245650, 3513260, 52114339, 795230788, 12411836882, 197327486617, 3185686181794, 52101500060794, 861628197679360

Offset

0,2

Links

Table of n, a(n) for n=0..14.

Crossrefs

Cf. A086629 (table), A086631 (antidiagonal sums).

Sequence in context: A192460 A004122 A359124 * A151361 A328008 A073559

Adjacent sequences: A086627 A086628 A086629 * A086631 A086632 A086633

Keyword

nonn

Author

Paul D. Hanna, Jul 24 2003

Status

approved