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 A180517 Primes that become a different prime under the mapping 0 <=> 2. 46
 23, 107, 127, 211, 223, 227, 241, 271, 283, 401, 421, 503, 523, 809, 829, 1009, 1013, 1021, 1031, 1049, 1091, 1097, 1103, 1109, 1123, 1129, 1201, 1213, 1229, 1231, 1249, 1291, 1297, 1301, 1307, 1321, 1327, 1409, 1429, 1601, 1607, 1621, 1627, 2003, 2011 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Robert Price, Table of n, a(n) for n = 1..2511 Index to Primes, Primes that become a different prime under some mapping. MATHEMATICA fQ[n_] := Block[{id = IntegerDigits@n}, (MemberQ[id, 0] || MemberQ[id, 2]) && PrimeQ[ FromDigits[ id /. {0 -> 2, 2 -> 0}] ]]; Select[ Prime@ Range@ 350, fQ] CROSSREFS Cf. A171014, A175791, A180517 thru A180559, A175789, A180560, A180561. Sequence in context: A044274 A044655 A231439 * A142244 A139912 A176928 Adjacent sequences: A180514 A180515 A180516 * A180518 A180519 A180520 KEYWORD base,nonn AUTHOR Zak Seidov and Robert G. Wilson v, Sep 09 2010 STATUS approved

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Last modified April 20 05:55 EDT 2024. Contains 371799 sequences. (Running on oeis4.)