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A175085 Numbers m such that product of perfect divisors of x = m has no solution. 4
4, 9, 25, 32, 36, 49, 100, 121, 144, 169, 196, 225, 243, 289, 324, 361, 400, 441, 484, 512, 529, 576, 676, 784, 841, 900, 961, 1024, 1089, 1156, 1225, 1369, 1444, 1521, 1600, 1681, 1764, 1849, 1936, 2025, 2048, 2116, 2209, 2304, 2500, 2601, 2704, 2809, 2916, 3025, 3125, 3136, 3249, 3364, 3481, 3600, 3721, 3844, 3969, 4225 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Perfect divisor of n is divisor d such that d^k = n for some k >= 1.

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..119

CROSSREFS

Subsequence of A001597 (perfect powers). Complement of A175084.

Sequence in context: A045967 A232241 A163836 * A182120 A099998 A030140

Adjacent sequences:  A175082 A175083 A175084 * A175086 A175087 A175088

KEYWORD

nonn

AUTHOR

Jaroslav Krizek, Jan 24 2010

EXTENSIONS

More terms from Antti Karttunen, Nov 21 2017

STATUS

approved

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Last modified October 20 15:19 EDT 2018. Contains 316388 sequences. (Running on oeis4.)