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A337245 a(n) is the least perfect power whose digits can be rearranged in n different ways (including itself) to form perfect powers. 1
4, 125, 169, 1296, 16384, 10609, 1046529, 1006009, 10278436, 12348196, 12659364, 14243076, 100240144, 113294736, 102535876, 105452361, 102353689, 104346225, 108305649, 100460529, 1021953024, 102576384, 1012639684, 1001532609, 1034072649, 1006348729, 1108357264, 1039288644 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Do all terms except 4 start with 1?

LINKS

Table of n, a(n) for n=1..28.

David A. Corneth, Examples n = 1..28 along the perfect powers

EXAMPLE

a(3) = 169 = 13^2 as 169 is a perfect power and its digits can be permuted in three ways: 169 = 13^2, 196 = 14^2, and 961 = 31^2.

CROSSREFS

Cf. A069656.

Sequence in context: A343427 A209040 A068891 * A073351 A195797 A286017

Adjacent sequences:  A337242 A337243 A337244 * A337246 A337247 A337248

KEYWORD

nonn,base

AUTHOR

David A. Corneth, Aug 20 2020

STATUS

approved

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Last modified August 7 10:19 EDT 2022. Contains 355985 sequences. (Running on oeis4.)