A026662 T(2n,n-2), T given by A026659.

1, 8, 38, 202, 873, 4228, 17982, 83986, 356720, 1636710, 6967782, 31651902, 135174069, 610281684, 2614576678, 11756749378, 50516489196, 226522941742, 975898078974, 4367362698334, 18859586883256, 84276937119086, 364693906704798

Offset

2,2

Links

Table of n, a(n) for n=2..24.

Crossrefs

Sequence in context: A214931 A229366 A007786 * A377161 A196074 A329172

Adjacent sequences: A026659 A026660 A026661 * A026663 A026664 A026665

Keyword

nonn

Author

Clark Kimberling

Status

approved