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A205866
Positions of multiples of 8 in A204922 (differences of Fibonacci numbers).
3
14, 19, 21, 23, 37, 50, 56, 65, 67, 76, 78, 80, 86, 94, 109, 111, 112, 125, 131, 140, 142, 143, 152, 157, 159, 160, 169, 171, 173, 179, 185, 199, 211, 220, 222, 223, 236, 242, 248, 254, 263, 265, 266, 275, 277, 286, 288, 289, 298, 300, 302, 308, 314
OFFSET
1,1
COMMENTS
For a guide to related sequences, see A205840.
LINKS
EXAMPLE
In A204922=(1,2,1,4,3,2,7,6,5,3,12,11,...), multiples of 8 are in positions 14,19,21,... See the example at A205867.
MAPLE
R:= select(t -> combinat:-fibonacci(t[1])-combinat:-fibonacci(t[2]) mod 8 =0, [seq(seq([i, j], i=0..11), j=0..11)]):
Res:= NULL:
for kk from 3 to 50 do
km:= kk mod 12;
n0:= 1 + (kk-2)*(kk-3)/2;
js:= [$n0 ..(n0+kk-3)];
Res:= Res, op( select(t -> member([kk, t+2-n0] mod 12, R), js));
od:
Res; # Robert Israel, Jul 27 2020
MATHEMATICA
(See the program at A205867.)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Feb 02 2012
STATUS
approved