A189464 Positions of 0 in A189463.

1, 5, 9, 13, 14, 17, 18, 22, 26, 30, 31, 34, 35, 39, 43, 47, 48, 51, 52, 56, 60, 64, 68, 69, 73, 77, 81, 85, 86, 89, 90, 94, 98, 102, 103, 106, 107, 111, 115, 119, 120, 123, 124, 128, 132, 136, 140, 141, 145, 149, 153, 157, 158, 161, 162, 166, 170, 174, 175, 178, 179, 183, 187, 191, 192, 195, 196, 200, 204, 208, 212, 213, 217

Offset

1,2

Comments

See A189463.

Links

G. C. Greubel, Table of n, a(n) for n = 1..5000

Mathematica

r = 5^(1/2);
f[n_] := Floor[3 n*r] - 3*Floor[n*r];
t = Table[f[n], {n, 1, 220}] (* A189463 *)
Flatten[Position[t, 0]]   (* A189464 *)
Flatten[Position[t, 1]]   (* A189465 *)
Flatten[Position[t, 2]]   (* A190158 *)

Crossrefs

Cf. A189463, A189465, A190158.

Sequence in context: A080455 A122798 A241987 * A130333 A304868 A080579

Adjacent sequences: A189461 A189462 A189463 * A189465 A189466 A189467

Keyword

nonn

Author

Clark Kimberling, Apr 22 2011

Status

approved