A038741 T(n,n-4), array T as in A038738.

1, 11, 68, 313, 1201, 4082, 12761, 37633, 106573, 293526, 793453, 2118657, 5612906, 14797581, 38896117, 102061314, 267532982, 700883736, 1835598926, 4806570842, 12585001630, 32949618088, 86265413414, 225848657954

Offset

4,2

Links

Table of n, a(n) for n=4..27.

Formula

G.f.: x^4/[(1-3x+x^2)(1-x)^8].

Crossrefs

Sequence in context: A145833 A111931 A066433 * A292490 A169731 A212057

Adjacent sequences: A038738 A038739 A038740 * A038742 A038743 A038744

Keyword

nonn

Author

Clark Kimberling, May 02 2000

Status

approved