A047064 T(n,n-2), array T as in A047060.

1, 3, 9, 30, 103, 359, 1288, 4689, 17314, 64534, 242041, 913736, 3467291, 13218109, 50584796, 194187685, 747554181, 2884909591, 11157920117, 43240538732, 167862452804, 652673851739, 2541286908281, 9907679984365, 38672555616984, 151112970258915, 591058042101783

Offset

2,2

Links

Table of n, a(n) for n=2..28.

Crossrefs

Sequence in context: A148950 A148951 A228248 * A047007 A007453 A148952

Adjacent sequences: A047061 A047062 A047063 * A047065 A047066 A047067

Keyword

nonn

Author

Clark Kimberling

Extensions

Data corrected by Sean A. Irvine, May 11 2021

Status

approved