A132392 a(n) = smallest number k such that the decimal expansion of k^n begins with a string of at least n identical digits.

1, 15, 322, 167, 6444, 32183, 7306, 225418, 6551032, 683405939, 7074698775, 26331754107, 844494314469, 1247955519394, 251188643150958, 93364101391902, 16114920282762613, 239390020079624346, 191165654339590395, 3098813483887370178, 41804838226534899989

Offset: 1

Author

Jonathan Vos Post, Aug 29 2007

Keywords

• nonn
• base

Examples

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

Links

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

Crossrefs

See A131699 for another version.

Extensions

More terms from Hans Havermann, Aug 30 2007