A188220 Positions of 1 in the zero-one sequence [nr]-[5r]-[nr-5r], where r=sqrt(5), n>=1.

9, 13, 17, 26, 30, 34, 43, 47, 51, 60, 64, 68, 77, 81, 85, 89, 98, 102, 106, 115, 119, 123, 132, 136, 140, 149, 153, 157, 161, 170, 174, 178, 187, 191, 195, 204, 208, 212, 221, 225, 229, 233, 242, 246, 250, 259, 263, 267, 276, 280, 284, 293, 297, 301, 305, 314, 318, 322, 331, 335, 339, 348, 352, 356, 365, 369, 373, 382, 386, 390, 394, 403, 407, 411, 420, 424

Offset

1,1

Comments

See A188014.

Links

Table of n, a(n) for n=1..76.

Mathematica

r=5^(1/2)); k=5;
t=Table[Floor[n*r]-Floor[(n-k)*r]-Floor[k*r], {n, 1, 220}]
Flatten[Position[t, 1]]  (*A188220*)

Crossrefs

Cf. A188014.

Sequence in context: A134441 A174055 A273059 * A211429 A103152 A295113

Adjacent sequences: A188217 A188218 A188219 * A188221 A188222 A188223

Keyword

nonn

Author

Clark Kimberling, Mar 24 2011

Status

approved