A026901 T(2n+1,n+4), T given by A026780.

1, 10, 68, 396, 2136, 11062, 56070, 281306, 1406721, 7042818, 35401568, 178975192, 910933936, 4669860386, 24114746282, 125416122430, 656713729000, 3460748531510, 18345703137458, 97782896293158, 523786141723670

Offset

3,2

Links

Table of n, a(n) for n=3..23.

Crossrefs

Sequence in context: A192021 A026984 A104598 * A027242 A081656 A219466

Adjacent sequences: A026898 A026899 A026900 * A026902 A026903 A026904

Keyword

nonn

Author

Clark Kimberling

Status

approved