

A067448


Smallest nth power whose decimal expansion starts with 7.


3



7, 729, 729, 707281, 7776, 729, 78125, 78310985281, 794280046581, 79792266297612001, 743008370688, 7355827511386641, 793714773254144, 78364164096, 734461618571137961752599, 79766443076872509863361
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OFFSET

1,1


COMMENTS

Terms from Robert G. Wilson v.


LINKS

Table of n, a(n) for n=1..16.


MATHEMATICA

a = {}; Do[k = 1; While[First[IntegerDigits[k^n]] != 7, k++ ]; a = Append[a, k^n], {n, 1, 25}]; a (* Robert G. Wilson v *)


CROSSREFS

Cf. A067442, A067443, A067444, A067445, A067446, A067447.
Sequence in context: A201485 A083978 A162138 * A249897 A249834 A064571
Adjacent sequences: A067445 A067446 A067447 * A067449 A067450 A067451


KEYWORD

base,easy,nonn


AUTHOR

Amarnath Murthy, Feb 05 2002


STATUS

approved



