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A211486
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Primes of the form 5+3*2^n.
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2
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11, 17, 29, 53, 101, 197, 389, 773, 49157, 196613, 1572869, 12582917, 50331653, 402653189, 1610612741, 12884901893, 824633720837, 54043195528445957, 432345564227567621, 3458764513820540933, 226673591177742970257413, 59421121885698253195157962757
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[5+2^Range[0, 2000]*3, PrimeQ]
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PROG
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(Magma) [ a: n in [0..250] | IsPrime(a) where a is 5+3*2^n ]
(PARI) {for(n=0, 80, if(isprime(k=5+3*2^n), print1(k, ", ")))}
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CROSSREFS
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Cf. A057913 (n such that 3*2^n + 5 is prime).
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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