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A050287 Starting position of the first occurrence of a string of at least n '8's in the decimal expansion of Pi. 12

%I #21 Sep 20 2022 07:53:06

%S 11,34,4751,4751,213245,222299,4722613,46663520,46663520,3040319543,

%T 159999448572,1141385905180,2164164669332,91250566353705

%N Starting position of the first occurrence of a string of at least n '8's in the decimal expansion of Pi.

%C Differs from A096762 from a(3) = a(4) = A096762(4) < A096762(3) on. - _M. F. Hasler_, Mar 19 2017

%H Peter TrĂ¼b, <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>

%Y Cf. A000796: Decimal expansion (or digits) of Pi.

%Y First occurrence of n times the same digit: A035117 (n '1's), A050281 (n '2's), A050282, A050283, A050284, A050286, A050287, A048940 (n '9's).

%Y First occurrence of exactly n times the same digit: A096755 (exactly n '1's), A096756, A096757, A096758, A096759, A096760, A096761, A096762, A096763 (exactly n '9's), A050279 (exactly n '0's).

%Y First occurrence of concatenate(1,...,n): A121280 = A068987 - 1.

%K nonn,base,more

%O 1,1

%A _Eric W. Weisstein_

%E More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002

%E a(11)-a(13) added by _Dmitry Petukhov_, Dec 30 2019

%E a(14) from _Dmitry Petukhov_, Sep 20 2022

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Last modified April 19 19:02 EDT 2024. Contains 371798 sequences. (Running on oeis4.)