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A243457
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Primes p such that (p reversed)-2 is also a prime.
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6
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5, 7, 13, 19, 31, 37, 127, 139, 151, 163, 181, 193, 307, 313, 331, 349, 367, 379, 547, 571, 577, 991, 997, 1009, 1033, 1051, 1117, 1123, 1129, 1171, 1201, 1213, 1231, 1249, 1279, 1297, 1321, 1327, 1399, 1429, 1453, 1459, 1489, 1543, 1567, 1579, 1597, 1609
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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[Prime[Range[2, 5000]], PrimeQ[FromDigits[Reverse[IntegerDigits[#]]] - 2] &]
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PROG
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(Magma) [p: p in PrimesInInterval(2, 2000) | IsPrime(q-2) where q is Seqint(Reverse(Intseq(p)))];
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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