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A049523
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Smallest starting index for a run of exactly n consecutive equal digits in decimal expansion of Pi.
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15
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1, 25, 154, 1590, 17535, 763, 710101, 22931746, 24658602, 386980413, 15647738229, 368299898267, 2164164669333, 5758910552710, 46970519777308
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,2
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COMMENTS
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Digits 3,1,4,1,5,... are indexed 1,2,3,4,5,...
a(11) > 2*10^9. - M. F. Hasler, Mar 22 2017
a(12) > 99*10^9. - Giovanni Resta, Oct 02 2019
a(15) > 12*10^12. - Dmitry Petukhov, Dec 30 2019
a(16) > 50*10^12, a(17) = 28642224609576. - Dmitry Petukhov, Oct 30 2021
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LINKS
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Table of n, a(n) for n=1..15.
Dave Andersen, Pi-Search Page
Yasumasa Kanada, Statistical Distribution Information, Home page, Computer Centre, The University of Tokyo.
Timothy Mullican, 50 trillion digits of pi
PI-world Site, The digits and Statistics for 12 trillion digits of PI [archived page]
James Taylor, Irrational Number Search Engine
Peter Trüb, 22.4 trillion digits of pi
Eric Weisstein's World of Mathematics, Pi Digits.
Index entries for sequences related to the number Pi
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EXAMPLE
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See A084144 for an example.
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CROSSREFS
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Cf. A049514, A049515, A049516, A049517, A049518, A049519, A049520, A049521, A049522.
Cf. A084144 (digit with this starting index).
Sequence in context: A031211 A049522 A084073 * A232000 A260046 A316948
Adjacent sequences: A049520 A049521 A049522 * A049524 A049525 A049526
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KEYWORD
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nonn,base,more
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AUTHOR
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Harvey P. Dale
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EXTENSIONS
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More terms from Rick L. Shepherd, May 15 2003
Edited and a(10) (via Taylor's search engine) added by M. F. Hasler, Mar 21 2017
a(11) from Giovanni Resta, Oct 02 2019
a(12)-a(14) added by Dmitry Petukhov, Dec 30 2019
a(15) from Dmitry Petukhov, Oct 30 2021
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STATUS
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approved
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