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%I #24 Feb 29 2020 09:49:28
%S 710100,3204765,12469058,18216168,19175682,36488176,36488177,42437943,
%T 54526147,76792653,87263786,95101068,112249661,113232305,118231603,
%U 130495608,130508230,198084084,201772821,206918971,228353275,233880416,244148278,248922246,248922247
%N Starting positions of strings of seven '3's in the decimal expansion of Pi.
%H Dave Andersen, <a href="http://www.angio.net/pi/piquery">Pi-Search Page</a>
%H James Taylor, <a href="http://www.subidiom.com/pi/">Irrational Number Search Engine</a> (yields terms up to 2*10^9).
%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>
%Y Cf. A083613 (six '3's), A083601 (seven '0's), A083605 (seven '1's), A118079 (seven '2's), A083619 (seven '4's), A083624 (seven '5's), A083629 (seven '6's), A083635 (seven '7's), A083641 (seven '8's), A083646 (seven '9's).
%K nonn,base
%O 1,1
%A _Rick L. Shepherd_, May 01 2003
%E More terms from _Rick L. Shepherd_, Aug 06 2006
%E Edited by _M. F. Hasler_, Mar 21 2017
%E More terms from _Jinyuan Wang_, Feb 29 2020
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