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A225322
Lucky numbers that are prime powers.
1
1, 9, 25, 49, 169, 289, 361, 529, 729, 841, 961, 1369, 2187, 2209, 3481, 3721, 5041, 7921, 9409, 10609, 24649, 29791, 32041, 32761, 36481, 50653, 52441, 66049, 73441, 83521, 113569, 121801, 128881, 130321, 167281, 175561, 185761, 226981, 292681, 300763, 323761
OFFSET
1,2
COMMENTS
Intersection of A025475 and A000959.
Conjecture: the sequence is infinite.
LINKS
Kevin P. Thompson, Table of n, a(n) for n = 1..1577 (terms < 10^10 with terms 1..628 from Donovan Johnson)
CROSSREFS
KEYWORD
nonn
AUTHOR
Alex Ratushnyak, May 05 2013
STATUS
approved