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A228699 Primes of the form 8*Product{i=1..n} p(i) - 1, where p(i) = i-th odd prime. 1
7, 23, 839, 9239, 2042039, 38798759, 892371479, 29682952539239, 1217001054108839, 2459559130353965639, 9222271855782073699012408589327024279, 1118939987271419744713104647488271238699988919 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..12.

A. J. Hanson, G. Ortiz, A. Sabry and Y.-T. Tai, Discrete Quantum Theories, arXiv preprint arXiv:1305.3292, 2013 [See footnote 25]

MATHEMATICA

Reap[Sow[7]; For[p = 3; P = 1, p < 10^4, p = NextPrime[p], P = p P; If[PrimeQ[an = 8 P - 1], Print["p = ", p, " an = ", an]; Sow[an]]]][[2, 1]] (* Jean-François Alcover, Oct 09 2018 *)

CROSSREFS

Cf. A228698.

Sequence in context: A034192 A050918 A322557 * A159485 A009047 A129662

Adjacent sequences:  A228696 A228697 A228698 * A228700 A228701 A228702

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Sep 03 2013

EXTENSIONS

a(11) and a(12) from Jean-François Alcover, Oct 09 2018

STATUS

approved

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Last modified April 19 15:36 EDT 2021. Contains 343116 sequences. (Running on oeis4.)