A024965 a(n) = Sum(a(2i-1)*a(n-2i+1), i = 1,2,...,[ (n+2)/4 ]).

1, 1, 1, 1, 1, 2, 3, 4, 6, 10, 16, 25, 39, 70, 117, 190, 315, 555, 950, 1595, 2700, 4806, 8346, 14267, 24593, 43772, 76730, 133072, 231389, 415124, 733000, 1282079, 2251229, 4042577, 7178774, 12651682, 22341634, 40275260, 71841139, 127279299

Offset

4,6

Links

Table of n, a(n) for n=4..43.

Crossrefs

Sequence in context: A104767 A072944 A024722 * A018142 A173697 A017986

Adjacent sequences: A024962 A024963 A024964 * A024966 A024967 A024968

Keyword

nonn

Author

Clark Kimberling

Status

approved