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%I #20 Sep 08 2022 08:45:54
%S 89,97,359,367,389,397,449,457,479,487,719,727,929,937,1069,1087,1109,
%T 1117,1259,1277,1439,1447,1559,1567,1759,1777,1979,1987,2459,2467,
%U 2609,2617,2699,2707,2879,2887,2909,2917,3209,3217,3449,3457,3719,3727
%N Pairs prime(k), prime(k+1) such that last digit of prime(k) is 9 and last digit of prime(k+1) is 7.
%o (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
%K nonn,base,less
%O 1,1
%A _Vincenzo Librandi_, Dec 29 2010
%E Corrected (2789, 2857 removed) by _Klaus Brockhaus_, Jan 01 2011
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