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A053751 Positions of 7's in the decimal expansion of Pi. 3

%I #19 May 31 2021 10:09:36

%S 14,30,40,48,57,67,97,100,121,140,157,167,210,225,233,236,243,289,300,

%T 302,307,321,344,352,406,408,413,430,440,453,459,464,469,476,479,487,

%U 507,539,541,545,549,557,560,561

%N Positions of 7's in the decimal expansion of Pi.

%H Vincenzo Librandi, <a href="/A053751/b053751.txt">Table of n, a(n) for n = 1..1000</a>

%H <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a>

%F a(n) = A036974(n) + 1. - _Georg Fischer_, May 31 2021

%t Flatten[Position[RealDigits[Pi, 10, 1000][[1]], 7]] (* _Vincenzo Librandi_, Oct 07 2013 *)

%Y Cf. A036974.

%K nonn,base

%O 1,1

%A _Simon Plouffe_, Feb 20 2000

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Last modified August 18 12:24 EDT 2024. Contains 375269 sequences. (Running on oeis4.)