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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
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
KEYWORD
nonn,base,hard
AUTHOR
Eric W. Weisstein, Jul 23 2013
STATUS
approved

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Last modified July 15 00:37 EDT 2024. Contains 374323 sequences. (Running on oeis4.)