A027997 Sum{T(n,k)*T(n,k+3)}, 0<=k<=2n-3, T given by A027926.

16, 70, 292, 1197, 4864, 19656, 79124, 317592, 1271976, 5085730, 20307396, 81003583, 322847552, 1285900570, 5119076236, 20370229878, 81032093192, 322258628220, 1281334227276, 5093898416278, 20248096412336, 80478051058480

Offset

3,1

Links

Table of n, a(n) for n=3..24.

Crossrefs

Sequence in context: A036660 A063493 A220212 * A284844 A258724 A264888

Adjacent sequences: A027994 A027995 A027996 * A027998 A027999 A028000

Keyword

nonn

Author

Clark Kimberling

Status

approved