A026076 a(n) = T(2n,n-1), where T is the array defined in A024996.

1, 2, 12, 62, 339, 1882, 10594, 60216, 344846, 1986620, 11499940, 66835540, 389741279, 2279233530, 13362109050, 78505098150, 462109616730, 2724728263348, 16089931091944, 95141866318652

Offset

1,2

Links

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

Crossrefs

Sequence in context: A125831 A289787 A226506 * A361812 A231025 A330387

Adjacent sequences: A026073 A026074 A026075 * A026077 A026078 A026079

Keyword

nonn

Author

Clark Kimberling

Status

approved