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A054293 Positions of 7's in the decimal expansion of (1+sqrt(5))/2. 1

%I #14 Jul 31 2019 16:30:25

%S 11,37,38,45,50,65,83,85,88,100,104,111,119,140,149,152,199,204,209,

%T 218,226,263,266,280,287,317,318,325,335,342,357,358,363,374,380,386,

%U 391,394,397,399,415,422,436,440

%N Positions of 7's in the decimal expansion of (1+sqrt(5))/2.

%H G. C. Greubel, <a href="/A054293/b054293.txt">Table of n, a(n) for n = 1..10000</a>

%t Flatten[Position[RealDigits[GoldenRatio, 10, 500][[1]], 7]] (* _G. C. Greubel_, Jul 31 2019 *)

%Y Cf. A001622.

%K nonn,base

%O 1,1

%A _Simon Plouffe_, Feb 20 2000

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)