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A132392 a(n) = smallest number k such that the decimal expansion of k^n begins with a string of at least n identical digits. 2
1, 15, 322, 167, 6444, 32183, 7306, 225418, 6551032, 683405939, 7074698775, 26331754107, 844494314469, 1247955519394, 251188643150958, 93364101391902, 16114920282762613, 239390020079624346, 191165654339590395, 3098813483887370178, 41804838226534899989 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Hans Havermann, Table of n, a(n) for n = 1..100

EXAMPLE

1^1 = 1, 15^2 = 225, 322^3 = 33386248, ...

CROSSREFS

See A131699 for another version.

Sequence in context: A088913 A053102 A327556 * A131699 A077738 A068124

Adjacent sequences:  A132389 A132390 A132391 * A132393 A132394 A132395

KEYWORD

nonn,base

AUTHOR

Jonathan Vos Post, Aug 29 2007

EXTENSIONS

More terms from Hans Havermann, Aug 30 2007

STATUS

approved

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Last modified January 17 14:57 EST 2020. Contains 330958 sequences. (Running on oeis4.)