A086628 Antidiagonal sums of square table A086626.

1, 2, 3, 8, 23, 70, 230, 782, 2729, 9740, 35345, 130018, 483782, 1817450, 6884050, 26261498, 100808873, 389101464, 1509198827, 5879305034, 22993849657

Offset

0,2

Links

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

Formula

G.f.: A(x) = (1-x^2)/(1-x)^2 + x^2*A(x)^3.

Crossrefs

Cf. A086626 (table), A086627 (diagonal).

Sequence in context: A006076 A263459 A261061 * A365118 A032096 A301462

Adjacent sequences: A086625 A086626 A086627 * A086629 A086630 A086631

Keyword

nonn

Author

Paul D. Hanna, Jul 24 2003

Status

approved