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 A163678 Smaller prime p in Ormiston pairs (p, q) with q - p = 18. 3
 1913, 18379, 19013, 25013, 34613, 35879, 36979, 37379, 37813, 40013, 40213, 45613, 48091, 49279, 51613, 55313, 56179, 56713, 58613, 63079, 63179, 64091, 65479, 66413, 74779, 75913, 76213, 76579, 76679, 85313, 88379, 90379, 90679, 93113 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS An Ormiston pair (or rearrangement prime pair) is a pair of consecutive primes that use the same digits in a different order. LINKS G. C. Greubel, Table of n, a(n) for n = 1..5000 Jens Kruse Andersen, Ormiston Tuples Eric Weisstein's World of Mathematics, Rearrangement Prime Pair EXAMPLE (19013, 19031) is an Ormiston pair with gap 18, so 19013 is in the sequence. MATHEMATICA Transpose[Select[Select[Partition[Prime[Range[10000]], 2, 1], Last[#] - First[#] == 18 &], Sort[IntegerDigits[First[#]]] == Sort[IntegerDigits[Last[#]]] &]][[1]] (* G. C. Greubel, Aug 02 2017 *) PROG (MAGMA) [ p: p in PrimesUpTo(100000) | q-p eq 18 and a eq b where a is Sort(Intseq(p)) where b is Sort(Intseq(q)) where q is NextPrime(p) ]; CROSSREFS Subsequence of A069567. Cf. A072274, A163863. Sequence in context: A168499 A230083 A069567 * A175517 A163863 A251917 Adjacent sequences:  A163675 A163676 A163677 * A163679 A163680 A163681 KEYWORD nonn,base AUTHOR Klaus Brockhaus, Aug 03 2009 EXTENSIONS Keyword base added by Klaus Brockhaus, Sep 18 2009 STATUS approved

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Last modified May 31 19:40 EDT 2020. Contains 334748 sequences. (Running on oeis4.)