A026707 a(n) = T(2n-1,n-1), T given by A026703.

1, 5, 24, 116, 564, 2752, 13457, 65891, 322905, 1583317, 7766507, 38106295, 187002147, 917808733, 4505028968, 22114223996, 108559218028, 532938398090, 2616366650454, 12844836179996, 63061569809046, 309603357661692

Offset

1,2

Links

Table of n, a(n) for n=1..22.

Crossrefs

Cf. A026703.

Sequence in context: A004254 A086347 A200739 * A235115 A110190 A026784

Adjacent sequences: A026704 A026705 A026706 * A026708 A026709 A026710

Keyword

nonn

Author

Clark Kimberling

Status

approved