A054291 - OEIS

A054291

Positions of 5's in the decimal expansion of (1+sqrt(5))/2.

23, 31, 49, 58, 67, 105, 112, 120, 134, 156, 167, 169, 173, 178, 205, 215, 242, 264, 277, 282, 285, 295, 298, 329, 331, 338, 353, 368, 388, 393, 395, 408, 416, 450, 453, 469, 487, 507, 516, 524, 527, 539, 555, 570, 580, 587, 627, 634, 651, 659, 672, 678, 687

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

OFFSET

1,1

LINKS

G. C. Greubel, Table of n, a(n) for n = 1..10000

MATHEMATICA

Flatten[Position[RealDigits[GoldenRatio, 10, 500][[1]], 5]] (* G. C. Greubel, Jul 31 2019 *)

CROSSREFS

Cf. A001622.

Sequence in context: A139837 A145375 A086547 * A261086 A052230 A177981

Adjacent sequences: A054288 A054289 A054290 * A054292 A054293 A054294

KEYWORD

nonn,base

AUTHOR

Simon Plouffe, Feb 20 2000

STATUS

approved