A175085 Numbers m such that product of perfect divisors of x = m has no solution.

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

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: A336445 A232241 A163836 * A182120 A099998 A360902

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