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A178917
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Pairs prime(k), prime(k+1) such that last digit of prime(k) is 9 and last digit of prime(k+1) is 7.
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0
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89, 97, 359, 367, 389, 397, 449, 457, 479, 487, 719, 727, 929, 937, 1069, 1087, 1109, 1117, 1259, 1277, 1439, 1447, 1559, 1567, 1759, 1777, 1979, 1987, 2459, 2467, 2609, 2617, 2699, 2707, 2879, 2887, 2909, 2917, 3209, 3217, 3449, 3457, 3719, 3727
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OFFSET
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1,1
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LINKS
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PROG
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(Magma) &cat[ [p, q]: p in PrimesUpTo(4000) | P[1] eq 9 and Q[1] eq 7 where P is Intseq(p) where Q is Intseq(q) where q is NextPrime(p) ]; // Klaus Brockhaus, Jan 01 2011
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CROSSREFS
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KEYWORD
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nonn,base,less
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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