A047027 T(n,n+2), array T given by A047020.

1, 3, 9, 28, 95, 331, 1169, 4234, 15533, 57410, 214396, 806324, 3046963, 11575473, 44163245, 169039223, 649096030, 2499407973, 9646255701, 37309138495, 144580572524, 561217993364, 2181849519347, 8494360042301, 33111979073980

Offset

0,2

Links

Table of n, a(n) for n=0..24.

Crossrefs

Sequence in context: A120985 A014323 A000752 * A366859 A148931 A243599

Adjacent sequences: A047024 A047025 A047026 * A047028 A047029 A047030

Keyword

nonn

Author

Clark Kimberling

Status

approved