A027112 a(n) = Sum_{k=0..2n-3} T(n,k) * T(n,k+3), with T given by A027082.

29, 238, 2012, 16975, 143106, 1207017, 10191450, 86181211, 730023605, 6195099626, 52668845006, 448581627313, 3827264611569, 32708905417122, 279989900778562, 2400407089060955, 20609200162062499, 177190108342853474, 1525420499563895994, 13148693465859069309

Offset

3,1

Links

Table of n, a(n) for n=3..22.

Crossrefs

Sequence in context: A042636 A091630 A251424 * A142095 A140845 A223837

Adjacent sequences: A027109 A027110 A027111 * A027113 A027114 A027115

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from Sean A. Irvine, Oct 23 2019

Status

approved