A047065 T(n,n-3), array T as in A047060.

1, 4, 14, 50, 180, 651, 2387, 8833, 32981, 123991, 468476, 1778564, 6779824, 25939287, 99558312, 383146247, 1478074248, 5714228324, 22133961135, 85885304838, 333778557727, 1299016042584, 5062113733182, 19749838547551, 77137907898735, 301582958980900

Offset

3,2

Links

Table of n, a(n) for n=3..28.

Crossrefs

Sequence in context: A372874 A153367 A211304 * A047008 A055990 A211308

Adjacent sequences: A047062 A047063 A047064 * A047066 A047067 A047068

Keyword

nonn

Author

Clark Kimberling

Extensions

Data corrected by Sean A. Irvine, May 11 2021

Status

approved