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%I #10 Jan 26 2020 01:13:24
%S 2,59,2707,54525,808650,828499,17893953,22931745,1346808619,
%T 66757797341,66757797341,1379889220413,15170474235886
%N a(n) is the starting position of the first occurrence of a string of n 4's in the decimal expansion of Pi.
%C a(14) > 22*10^12. - _Dmitry Petukhov_, Jan 25 2020
%H Peter Trüb, <a href="https://pi2e.ch/blog/2017/03/10/pi-digits-download/">22.4 trillion digits of pi</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PiDigits.html">Pi Digits.</a>
%e More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002
%K nonn,base
%O 1,1
%A _Eric W. Weisstein_
%E a(10)-a(13) from _Dmitry Petukhov_, Jan 25 2020
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