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A074174 Smallest number k such that k and k+n are of the form p^2*q where p and q are primes. +0
4
44, 18, 172, 171, 45, 12, 45, 12, 236, 18, 52, 63, 50, 261, 524, 12, 28, 45, 44, 637, 404, 28, 45, 20, 20, 18, 18, 147, 63, 20, 44, 12, 12, 18, 28, 63, 116, 12, 236, 12, 75, 50, 20, 325, 18, 52, 28, 20, 50, 18, 12, 423, 45, 44, 20, 12, 18, 18, 116, 147, 63, 325, 12, 12, 52 (list; graph; listen)
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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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