A026691 Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026681.

1, 1, 2, 4, 7, 13, 21, 36, 58, 106, 182, 333, 553, 964, 1583, 2842, 4851, 8752, 14662, 25624, 42578, 75838, 129440, 231437, 389828, 680953, 1140225, 2019932, 3451406, 6132335, 10371952, 18098034, 30472684, 53758827

Offset

0,3

Links

Table of n, a(n) for n=0..33.

Crossrefs

Sequence in context: A051058 A332578 A026625 * A018150 A019471 A061257

Adjacent sequences: A026688 A026689 A026690 * A026692 A026693 A026694

Keyword

nonn

Author

Clark Kimberling

Status

approved