A047117 T(n,n+2), array T as in A047110.

1, 3, 9, 33, 115, 401, 1482, 5449, 20048, 75303, 283599, 1069860, 4070772, 15539326, 59433763, 228278533, 879053987, 3391075968, 13113667186, 50808921375, 197150760045, 766241841810, 2982295208876, 11621280655944

Offset

0,2

Links

Table of n, a(n) for n=0..23.

Crossrefs

Sequence in context: A323790 A148988 A148989 * A148990 A184512 A148991

Adjacent sequences: A047114 A047115 A047116 * A047118 A047119 A047120

Keyword

nonn

Author

Clark Kimberling

Status

approved