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A193991 Number of zeros in the period of Fibonacci 3-step sequence A000073 mod n. 2
1, 2, 4, 3, 6, 8, 12, 4, 9, 12, 10, 12, 18, 9, 24, 4, 5, 18, 27, 18, 48, 10, 24, 16, 10, 12, 15, 9, 5, 48, 13, 6, 40, 5, 72, 27, 16, 18, 72, 24, 14, 36, 10, 15, 54, 48, 5, 16, 30, 20, 20, 12, 5, 30, 60, 9, 108, 4, 60, 72, 45, 26, 36, 10, 108, 40, 19, 5, 96 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
LINKS
MATHEMATICA
n = 3; Table[a = Join[{1}, Table[0, {n - 1}]]; a = Mod[a, i]; a0 = a; k = 0; zeros = 0; While[k++; s = Mod[Plus @@ a, i]; a = RotateLeft[a]; If[s == 0, zeros++]; a[[n]] = s; a != a0]; zeros, {i, 100}]
CROSSREFS
Cf. A046738.
Sequence in context: A356430 A128555 A039874 * A368523 A114107 A362041
KEYWORD
nonn
AUTHOR
T. D. Noe, Aug 18 2011
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)