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A061182 Third column (m=2) of triangle A060921 (bisection of Fibonacci triangle, odd part). 2

%I

%S 3,22,111,474,1836,6666,23109,77378,252177,804228,2519640,7777860,

%T 23709783,71501422,213619683,633011454,1862264196,5443487406,

%U 15820188729,45739697306,131624104677,377157259848

%N Third column (m=2) of triangle A060921 (bisection of Fibonacci triangle, odd part).

%C Numerator polynomial is sum(A061177(2,m)*x^m,m=0..2).

%F a(n)= A060921(n+2, 2).

%F G.f.: (3*(1+x^2)-5*x)/(1-3*x+x^2)^3.

%Y A001906, 2*A001870.

%K nonn,easy

%O 0,1

%A _Wolfdieter Lang_, Apr 20 2001

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Last modified September 22 00:42 EDT 2020. Contains 337276 sequences. (Running on oeis4.)