%I #9 Sep 08 2022 08:45:47
%S 1290719,1477219,1802419,2520697,2902519,3327419,3391697,3498119,
%T 4596419,4641919,4709519,5521819,5835619,6091031,6267419,6642919,
%U 6943919,7118519,7480519,8241019,8630519,8934319,8946919,9859697
%N Smaller prime p in Ormiston pairs (p, q) with q - p = 72.
%C An Ormiston pair (or rearrangement prime pair) is a pair of consecutive primes that use the same digits in a different order.
%H Jens Kruse Andersen, <a href="http://primerecords.dk/ormiston_tuples.htm">Ormiston Tuples</a>
%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/RearrangementPrimePair.html">Rearrangement Prime Pair</a>
%e (1802419, 1802491) is an Ormiston pair with gap 72, so 1802419 is in the sequence.
%t Transpose[Select[Select[Partition[Prime[Range[800000]],2,1],Last[#]-First[#]==72&],Sort[IntegerDigits[First[#]]]==Sort[IntegerDigits[Last[#]]]&]][[1]] (* _Harvey P. Dale_, Feb 14 2011 *)
%o (Magma) [ p: p in PrimesUpTo(10000000) | q-p eq 72 and a eq b where a is Sort(Intseq(p)) where b is Sort(Intseq(q)) where q is NextPrime(p) ];
%Y Subsequence of A069567.
%Y Cf. A072274, A163863.
%K nonn,base
%O 1,1
%A _Klaus Brockhaus_, Aug 03 2009
%E Keyword base added by _Klaus Brockhaus_, Sep 18 2009
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