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A362462
Indices of 1's in A362460.
4
1, 2, 6, 7, 8, 12, 14, 17, 20, 21, 23, 26, 27, 28, 31, 32, 33, 35, 36, 38, 39, 41, 44, 45, 46, 47, 50, 51, 53, 54, 56, 58, 60, 61, 62, 63, 65, 67, 68, 69, 73, 74, 75, 76, 77, 78, 83, 84, 85, 86, 87, 88, 89, 90, 91, 95, 97, 101, 103, 104, 106, 108, 109, 111, 112, 116, 117, 122, 123, 124, 125, 127, 128, 129, 130, 131, 135
OFFSET
1,2
LINKS
Rémy Sigrist, C program
MATHEMATICA
A000959[upto_]:=Module[{s=2, a=Range[1, upto, 2]}, While[s<Length[a]&&a[[s]]<=Length[a], a=Drop[a, {a[[s]], -1, a[[s++]]}]]; a];
A362462[upto_]:=Module[{d=A000959[upto]}, Table[If[First[d=Abs[Differences[d]]]==2, n, Nothing], {n, Length[d]-1}]];
A362462[2000] (* Uses lucky numbers up to 2000 *) (* Paolo Xausa, May 11 2023 *)
PROG
(C) See Links section.
CROSSREFS
Sequence in context: A037454 A189242 A285160 * A287321 A030366 A048859
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, May 07 2023
STATUS
approved