A025078 a(n) = s(1)s(n) + s(2)s(n-1) + ... + s(k)s(n-k+1), where k = [ n/2 ] and s = (Fibonacci numbers).

1, 2, 5, 8, 19, 31, 65, 105, 210, 340, 654, 1058, 1985, 3212, 5911, 9564, 17345, 28065, 50305, 81395, 144516, 233832, 411900, 666468, 1166209, 1886966, 3283145, 5312240, 9197455, 14881795, 25655489, 41511453, 71293590, 115355452

Offset

1,2

Links

Table of n, a(n) for n=1..34.

Crossrefs

Sequence in context: A133147 A358828 A082630 * A218937 A192780 A320295

Adjacent sequences: A025075 A025076 A025077 * A025079 A025080 A025081

Keyword

nonn

Author

Clark Kimberling

Extensions

More terms from James A. Sellers, May 03 2000

Status

approved