A190232 - OEIS

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A190232

Positions of 1 in A190230; complement of A190231.

1, 2, 3, 4, 5, 6, 8, 9, 12, 16, 21, 22, 24, 25, 27, 28, 29, 31, 32, 35, 41, 42, 43, 44, 45, 47, 48, 50, 51, 54, 55, 58, 62, 63, 64, 66, 67, 70, 71, 74, 77, 82, 83, 84, 85, 86, 87, 89, 90, 93, 97, 100, 103, 104, 105, 106, 108, 109, 110, 112, 113, 116, 124, 125, 126, 127, 128, 129, 131, 132, 135, 139, 144, 145, 147, 148, 150

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

OFFSET

1,2

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..5500

MATHEMATICA

u = Sin[2Pi/5]; v = Cos[2Pi/5];

f[n_] := Floor[n*u + n*v] - Floor[n*u] - Floor[n*v]

t = Table[f[n], {n, 1, 120}] (* A190230 *)

Flatten[Position[t, 0]] (* A190231 *)

Flatten[Position[t, 1]] (* A190232 *)

CROSSREFS