References to A187431

Numbers n that generate 5 primes under the first 5 iterations of the map n->A002731(n).
30131199, 50817201, 56496039, 74316929, 171407609, 276672151, 293315671

1 seqfan posts

Thu Mar 10 06:08:25 CET 2011    [seqfan] Re: Where is the "Approved" button?
Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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