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Search: id:A164065
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| A164065 |
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Prime p3 of the sequence A164063: a^b - c^d = p1 (A164063), where a, b, c, d are primes and a + b + c + d = p2 (A164064), where p2 is prime and conc(abcd) = p3 (concatenation of a, b, c , d) is also prime. |
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3
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OFFSET
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1,1
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LINKS
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Program to generate the sequence [From Oleg Zyakun (opz(AT)list.ru), Oct 06 2009]
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EXAMPLE
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2^7 - 5^3 = 3, 2 + 7 + 5 + 3 = 17, conc (abcd) = 2753; 3^3 - 2^3 = 19, 3 + 3 + 2 + 3 = 11, conc (abcd) = 3323; 31^3 - 2^11 = 27743, 31 + 3 + 2 + 11 = 47, conc (abcd) = 313211; 31^3 - 2^7 = 29663, 31 + 3 + 2 + 7 = 43, conc (abcd) = 31327;
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CROSSREFS
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Sequence in context: A122107 A050268 A117081 this_sequence A014487 A043665 A046332
Adjacent sequences: A164062 A164063 A164064 this_sequence A164066 A164067 A164068
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KEYWORD
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nonn
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AUTHOR
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Oleg Zyakun (opz(AT)list.ru), Aug 12 2009
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