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Hankel transform of A157143.
1

%I #5 Jun 28 2013 06:16:23

%S 1,-2,-3,-3,8,0,0,-8,21,21,-34,-55,-55,144,0,0,-144,377,377,-610,-987,

%T -987,2584,0,0,-2584,6765,6765,-10946,-17711,-17711,46368,0,0,-46368,

%U 121393,121393

%N Hankel transform of A157143.

%C Fibonacci numbers missing have indexes 5,7,11,13,17,19,23,25,...(A007310?).

%C Fibonacci numbers appearing singly seem to have index 3*(2n+1) (except 1).

%F Empirical g.f.: -(x^11+3*x^8+x^6+9*x^5-2*x^4+3*x^2+2*x-1) / (x^12+3*x^9+8*x^6+3*x^3+1). - _Colin Barker_, Jun 28 2013

%K sign

%O 0,2

%A _Paul Barry_, Feb 24 2009