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A234999
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Primes p such that the p-th evil numbers is prime; 2 together with evil primes p such that 2p - 1 is prime.
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1
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2, 3, 139, 337, 547, 619, 691, 811, 937, 1237, 1297, 1399, 1429, 2089, 2179, 2221, 2281, 2467, 2539, 2617, 2707, 2719, 2791, 2851, 3019, 3067, 3499, 3739, 3769, 4027, 4177, 4357, 4447, 4567, 4951, 5431, 5479, 5557, 5581, 5749, 6037, 6229, 6379, 6421, 6691, 6841, 7507
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OFFSET
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1,1
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COMMENTS
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LINKS
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EXAMPLE
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2 is a prime and A001969(2) = 3, a prime also, thus 2 is in this sequence; 3 is a prime and A001969(3) = 5, a prime also, thus 3 is in this sequence; 139 is a prime A001969(139) = 277, a prime also, thus 139 is this sequence.
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PROG
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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