

A035117


a(n) is the starting position of the first occurrence of a string of at least n 1's in the decimal expansion of Pi.


20



1, 94, 153, 12700, 32788, 255945, 4657555, 159090113, 812432526, 3961184001, 15647738228, 1041032609981, 3907688331257
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,2


COMMENTS

Presently identical to A096755, which is the first occurrences of exactly n 1's in the digits of Pi. Will differ as soon as there's some a(n) = a(n+1) and equivalently, A035117(n) > A035117(n+1).  M. F. Hasler, Mar 17 2017


LINKS

Table of n, a(n) for n=1..13.
David G. Andersen, The PiSearch Page.
PIworld Site, The digits and Statistics for 12 trillion digits of PI [archived page]
Eric Weisstein's World of Mathematics, Pi Digits.
Yasumasa Kanada Laboratory Home Page, Computer Centre, The University of Tokyo, Statistical Distribution Information


CROSSREFS

Cf. A000796 (decimal expansion (or digits) of Pi).
Cf. A035117 (this), A050281 (n '2's), A050282, A050283, A050284, A050286, A050287, A048940 (n '9's).
Cf. A096755 (exactly n '1's), A096756, A096757, A096758, A096759, A096760, A096761, A096762, A096763 (exactly n '9's), A050279 (exactly n '0's).
Cf. A121280 = A068987  1 (position of "123...n" in Pi's decimals).
Cf. A176341 (first occurrence of n in Pi's digits).
Sequence in context: A039551 A100767 A050208 * A096755 A050965 A044426
Adjacent sequences: A035114 A035115 A035116 * A035118 A035119 A035120


KEYWORD

nonn,base,more


AUTHOR

Leonardo Bitran (lbitran(AT)reuna.cl)


EXTENSIONS

More terms from Colin Martin (cbmartin(AT)tpg.com.au), Mar 03 2002
Edited by N. J. A. Sloane at the suggestion of Andrew S. Plewe, May 27 2007
Edited, after reestablishing A096755, by M. F. Hasler, Mar 17 2017
a(11) from Giovanni Resta, Sep 30 2019
a(12) from Yasumasa Kanada Laboratory, 2002 and a(13) from Shigeru Kondo, 2011, added by Dmitry Petukhov, Dec 27 2019


STATUS

approved



