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A224836 First occurrence of n consecutive n's in the decimal expansion of Khinchin's constant. 0
9, 42, 1799, 494, 5760 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Earls sequence for Khinchin.

LINKS

Table of n, a(n) for n=1..5.

Eric Weisstein's World of Mathematics, Earls Sequence

Eric Weisstein's World of Mathematics, Khinchin's Constant Digits

EXAMPLE

1 first occurs at position 9 after the decimal point.

22 first occurs starting at position 42.

333 first occurs starting at position 1799.

MATHEMATICA

With[{k=RealDigits[Khinchin, 10, 6000][[1]]}, Flatten[Table[ SequencePosition[ k, PadRight[{}, n, n], 1][[All, 1]], {n, 5}]]]-1 (* Requires Mathematica version 10 or later *) (* Harvey P. Dale, Feb 17 2020 *)

CROSSREFS

Cf. A002210 (decimal expansion of Khinchin's constant).

Sequence in context: A074443 A221425 A007227 * A195975 A185918 A116015

Adjacent sequences:  A224833 A224834 A224835 * A224837 A224838 A224839

KEYWORD

nonn,base,hard,more

AUTHOR

Eric W. Weisstein, Jul 21 2013

STATUS

approved

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Last modified August 8 20:44 EDT 2022. Contains 356016 sequences. (Running on oeis4.)