A026979 a(n) = Sum_{k=0..n-3} T(n,k) * T(n,k+3), with T given by A026659.

1, 10, 75, 372, 2082, 9382, 49135, 205900, 1089140, 4503138, 22149416, 89553324, 466147593, 1880356006, 9068681952, 36243551268, 187297716687, 748569870492, 3582758601866, 14255818294268, 73363346762009, 292082311170392, 1393518662519246, 5535446394791612, 28405732479662661

Offset

3,2

Links

Table of n, a(n) for n=3..27.

Crossrefs

Sequence in context: A233455 A027778 A026969 * A274251 A073379 A283238

Adjacent sequences: A026976 A026977 A026978 * A026980 A026981 A026982

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 20 2019

Status

approved