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%I #15 Jan 26 2020 17:21:09
%S 2,59,2707,54525,808650,828499,17893953,22931745,1346808619,
%T 115763387962,66757797341,1379889220413,15170474235886
%N Index of first occurrence of exactly n consecutive fours in a row in the decimal expansion of Pi.
%C First differs from A050283 at n = 10. In particular, a(10) > a(11) while A050283(10) = A050283(11) = a(11). - _Dmitry Petukhov_, Jan 25 2020
%C a(14) > 22*10^12. - _Dmitry Petukhov_, Jan 25 2020
%H David G. Andersen, <a href="http://www.angio.net/pi/piquery">The Pi-Search Page</a>.
%H Peter Trüb, <a href="https://pi2e.ch/blog/2017/03/10/pi-digits-download/">22.4 trillion digits of pi</a>
%Y Cf. A050279, A035117, A096756, A096757, A050283, A096759, A096760, A096761, A096762, A096763 (similar for digits 0 through 9).
%K base,nonn
%O 1,1
%A _Robert G. Wilson v_, Jul 07 2004
%E a(10)-a(13) from _Dmitry Petukhov_, Jan 25 2020
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