A190249 Positions of 0 in A190248.

2, 5, 10, 13, 18, 23, 26, 31, 34, 36, 39, 44, 47, 52, 57, 60, 65, 68, 73, 78, 81, 86, 89, 91, 94, 99, 102, 107, 112, 115, 120, 123, 128, 133, 136, 141, 146, 149, 154, 157, 162, 167, 170, 175, 178, 180, 183, 188, 191, 196, 201, 204, 209, 212, 217, 222, 225, 230, 233, 235, 238, 243, 246, 251, 256, 259, 264, 267, 272, 277, 280, 285, 290

Offset

1,1

Links

G. C. Greubel, Table of n, a(n) for n = 1..2700

Burghard Herrmann, How integer sequences find their way into areas outside pure mathematics, The Fibonacci Quarterly (2019) Vol. 57, No. 5, 67-71.

Mathematica

u = GoldenRatio; v = u^2; w=u^3;
f[n_] := Floor[n*u + n*v + n*w] - Floor[n*u] - Floor[n*v] - Floor[n*w]
t = Table[f[n], {n, 1, 120}] (* A190248 *)
Flatten[Position[t, 0]]      (* A190249 *)
Flatten[Position[t, 1]]      (* A190250 *)
Flatten[Position[t, 2]]      (* A190251 *)

Crossrefs

Cf. A190248, A190250, A190251.

Sequence in context: A271787 A047617 A190437 * A188434 A135467 A230550

Adjacent sequences: A190246 A190247 A190248 * A190250 A190251 A190252

Keyword

nonn

Author

Clark Kimberling, May 06 2011

Status

approved