A026295 a(n) = T(2n,n-1), where T is the array in A026268.

1, 3, 14, 72, 385, 2110, 11757, 66298, 377245, 2161771, 12458186, 72130114, 419239101, 2444741300, 14296415880, 83807317674, 492339686501, 2897788821746, 17084275066796, 100873614561368

Offset

1,2

Links

Table of n, a(n) for n=1..20.

Crossrefs

Sequence in context: A191649 A009637 A098648 * A118650 A377113 A180187

Adjacent sequences: A026292 A026293 A026294 * A026296 A026297 A026298

Keyword

nonn

Author

Clark Kimberling

Status

approved