**Prime p1 of the form a^b - c^d = p1, where a, b, c, d are primes and a + b + c + d = p2, where p2 (A164064) is prime and conc(abcd) = p3 (concatenation of a, b, c, d) is also prime (A164065).**

*3, 19, 27743, 29663, 101281, 130729, 81535*

*1 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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