cp's OEIS Frontend

A096760 a(n) is the starting position of the first occurrence of a string of exactly n 6's in the decimal expansion of Pi.

%I A096760 #35 Feb 16 2025 08:32:54
%S A096760 7,117,2440,21880,48439,252499,8209165,55616210,45681781,386980412,
%T A096760 32104158792,1221587715177,81111117323616
%N A096760 a(n) is the starting position of the first occurrence of a string of exactly n 6's in the decimal expansion of Pi.
%C A096760 Differs from A050285 at a(8) > a(9) = A050285(9) = A050285(8). - _M. F. Hasler_, Apr 13 2019
%C A096760 a(12) > 99*10^9. - _Giovanni Resta_, Oct 02 2019
%C A096760 a(13) > 22*10^12. - _Dmitry Petukhov_, Jan 29 2020
%C A096760 a(13)-a(16) > 5*10^13, a(17) = 28642224609576. - _Dmitry Petukhov_, Oct 30 2021
%C A096760 a(14)-a(16) > 10^14. - _Dmitry Petukhov_, Sep 19 2022
%H A096760 David G. Andersen, <a href="http://www.angio.net/pi/piquery">The Pi-Search Page</a>.
%H A096760 Timothy Mullican, <a href="https://storage.googleapis.com/pi50t/index.html">50 trillion digits of pi</a>
%H A096760 Peter Trüb, <a href="https://pi2e.ch/blog/2017/03/10/pi-digits-download/">22.4 trillion digits of pi</a>
%H A096760 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/PiDigits.html">Pi Digits</a>
%Y A096760 Cf. A050285, A035117, A096756, A096757, A096758, A096759, A096761, A096762, A096763, A050279.
%K A096760 nonn,base,more
%O A096760 1,1
%A A096760 _Robert G. Wilson v_, Jul 07 2004
%E A096760 a(11) from _Giovanni Resta_, Oct 02 2019
%E A096760 a(12) from _Dmitry Petukhov_, Jan 14 2020
%E A096760 a(13) from _Dmitry Petukhov_, Sep 19 2022