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A006687

Duodecimal primes: p = (x^12 + y^12 )/(x^4 + y^4 ).

241, 5521, 6481, 51361, 346561, 380881, 390001, 1678321, 4332721, 4654801, 5576881, 12707521, 39336721, 41432641, 42942001, 99990001, 167948881, 184970641, 197063761, 205598881

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

REFERENCES

A. J. C. Cunningham, Binomial Factorisations, Vols. 1-9, Hodgson, London, 1923-1929; see Vol. 1, pp. 245-259.

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

LINKS

Table of n, a(n) for n=1..20.

A. J. C. Cunningham, Binomial Factorisations, Vols. 1-9, Hodgson, London, 1923-1929. [Annotated scans of a few pages from Volumes 1 and 2]

CROSSREFS

Sequence in context: A046948 A220056 A165383 * A372966 A060893 A165375

Adjacent sequences: A006684 A006685 A006686 * A006688 A006689 A006690

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved

URL: https://oeis.org/A006687

⇱ A006687 - OEIS