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A026691 Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026681. 0
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 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

CROSSREFS

Sequence in context: A090752 A051058 A026625 * A018150 A019471 A061257

Adjacent sequences:  A026688 A026689 A026690 * A026692 A026693 A026694

KEYWORD

nonn

AUTHOR

Clark Kimberling (ck6(AT)evansville.edu)

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Last modified February 17 23:08 EST 2012. Contains 206085 sequences.