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A134615
Numbers (excluding primes and powers of primes) such that the cube mean of their prime factors is a prime (where the cube mean of c and d is ((c^3+d^3)/2)^(1/3)).
+0
2
707265, 1922816, 2284389
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Maintained by
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njas@research.att.com
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.
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