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Sextan primes: p = (x^6 + y^6 )/()/(x^2 + y^2 ).).

_N. J. A. Sloane_._

approved

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A. J. C. Cunningham, <a href="/A001912/a001912.pdf">Binomial Factorisations</a>, Vols. 1-9, Hodgson, London, 1923-1929. [Annotated scans of a few pages from Volumes 1 and 2]

approved

editing

More terms from _Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), _, Jun 03 2009

OEIS Server: https://oeis.org/edit/global/145

_N. J. A. Sloane (njas(AT)research.att.com)._.

OEIS Server: https://oeis.org/edit/global/110

13, 61, 73, 193, 241, 541, 601, 1021, 1801, 1873, 1933, 2221, 3121, 3361, 4993, 5521, 6481, 8461, 9181, 9901, 10993, 11113, 12241, 12541, 13633, 14173, 17761, 20593, 21433, 21661, 21841, 23773, 26113, 27901, 28393, 29101, 34141, 41161, 49201

N. J. A. Sloane, A Handbook of Integer Sequences, Academic Press, 1973 (includes this sequence).

N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).

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More terms from Klaus Brockhaus (klaus-brockhaus(AT)t-online.de), Jun 03 2009

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N. J. A. Sloane (njas(AT)research.att.com).