A014728 Squares of odd Fibonacci numbers.

1, 1, 9, 25, 169, 441, 3025, 7921, 54289, 142129, 974169, 2550409, 17480761, 45765225, 313679521, 821223649, 5628750625, 14736260449, 101003831721, 264431464441, 1812440220361, 4745030099481, 32522920134769

Offset: 0

Author

Mohammad K. Azarian

Keywords

• nonn

Crossrefs

Cf. A014437.

Programs

Mathematica

Select[Fibonacci[Range[40]],OddQ]^2 (* Harvey P. Dale, Jan 18 2012 *)

PARI

A014728(n)=A014437(n)^2 \\ M. F. Hasler, Nov 18 2018

Formula

G.f.: (-x^5-x^4+8x^3-8x^2+x+1)/[(1+x^2)(1+4x-x^2)(1-4x-x^2)].

a(n) = A014437(n)^2. - Sean A. Irvine, Nov 18 2018

Extensions

More terms from James Sellers