Primes of the form A000009(q)+q, where q are also prime numbers.
3, 5, 23, 31, 73, 127, 797, 1301, 9851, 40099, 345953, 570181, 281138239
2 seqfan posts
Sat Jul 25 22:03:48 CEST 2009 [seqfan] Re: complementing A121558
Sat Jul 25 20:32:25 CEST 2009 [seqfan] Re: complementing A121558
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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