References to A144567

Primes of the form: smallest prime factor of n + largest prime factor of n, n > 1.
5, 7, 5, 5, 7, 13, 5, 7, 19, 5, 7, 13, 5, 7, 5, 31, 7, 13, 19, 5, 7, 43, 13, 7, 5, 7, 19, 5, 13


1 seqfan posts

Mon Mar 29 19:38:20 CEST 2010    [seqfan] Re: Help me understand these sequences

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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