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A224871 First occurrence of n consecutive n's in the decimal expansion of sqrt(2). 0
2, 114, 1481, 3308, 72459, 226697, 969836, 119555442, 2971094743 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Earls sequence for sqrt(2).

LINKS

Table of n, a(n) for n=1..9.

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

Eric Weisstein's World of Mathematics, Earls Sequence

EXAMPLE

sqrt(2) = 1.4142...0912297..., so

a(1) = 2 (one 1 first appears at digit 2 after the decimal) and

a(2) = 114 (two 2s first occur starting at digit 114).

CROSSREFS

Cf. A000129 (decimal expansion of sqrt(2)).

Sequence in context: A053976 A217088 A034312 * A230471 A140986 A157068

Adjacent sequences:  A224868 A224869 A224870 * A224872 A224873 A224874

KEYWORD

nonn,base,hard

AUTHOR

Eric W. Weisstein, Jul 23 2013

STATUS

approved

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Last modified August 26 05:23 EDT 2019. Contains 326328 sequences. (Running on oeis4.)