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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 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

For a guide to related sequences, see A205840.

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

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

Cf. A204890, A205867, A205840.

Sequence in context: A065343 A222576 A165228 * A248134 A013649 A013657

Adjacent sequences:  A205863 A205864 A205865 * A205867 A205868 A205869

KEYWORD

nonn

AUTHOR

Clark Kimberling, Feb 02 2012

STATUS

approved

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Last modified May 19 03:44 EDT 2022. Contains 353826 sequences. (Running on oeis4.)