A026691 - OEIS

%I #5 Mar 30 2012 18:56:10

%S 1,1,2,4,7,13,21,36,58,106,182,333,553,964,1583,2842,4851,8752,14662,

%T 25624,42578,75838,129440,231437,389828,680953,1140225,2019932,

%U 3451406,6132335,10371952,18098034,30472684,53758827

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

%K nonn

%O 0,3

%A _Clark Kimberling_