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%I #24 Mar 22 2020 08:03:05
%S 5,12,14,30,38,42,44,45,55,58,62,79,80,100,122,129,144,169,180,187,
%T 190,193,199,208,214,247,249,259,284,294,328,331,336,341,353,356,388,
%U 391,399,414,416,418,422,433,440,459,460,465,482,487,496,498,501,527
%N Positions of the digit '9' in the decimal expansion of Pi.
%H Amiram Eldar, <a href="/A037007/b037007.txt">Table of n, a(n) for n = 1..10000</a> (terms 1..369 from M. F. Hasler)
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PiDigits.html">Pi Digits.</a>
%H <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a>
%F a(n) = A053753(n) - 1. - _M. F. Hasler_, Mar 20 2017
%t Flatten @ Position[ RealDigits[Pi - 3, 10, 500][[1]], 9] (* _Robert G. Wilson v_, Mar 07 2011 *)
%Y Cf. A036974.
%Y Cf. A053753(n) = a(n) + 1.
%Y Cf. A048940, A096763, and the link to the OEIS index.
%Y Cf. A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037008.
%K nonn,base
%O 1,1
%A Nicolau C. Saldanha (nicolau(AT)mat.puc-rio.br)
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