login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A228699 Primes of the form 8*Product{i=1..n} p(i) - 1, where p(i) = i-th odd prime. 2

%I #20 Jul 18 2021 04:26:17

%S 7,23,839,9239,2042039,38798759,892371479,29682952539239,

%T 1217001054108839,2459559130353965639,

%U 9222271855782073699012408589327024279,1118939987271419744713104647488271238699988919

%N Primes of the form 8*Product{i=1..n} p(i) - 1, where p(i) = i-th odd prime.

%H Jinyuan Wang, <a href="/A228699/b228699.txt">Table of n, a(n) for n = 1..16</a>

%H A. J. Hanson, G. Ortiz, A. Sabry and Y.-T. Tai, <a href="http://arxiv.org/abs/1305.3292">Discrete Quantum Theories</a>, arXiv preprint arXiv:1305.3292 [quant-ph], 2013. [See footnote 25]

%t 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-Fran├žois Alcover_, Oct 09 2018 *)

%Y Cf. A228698.

%K nonn

%O 1,1

%A _N. J. A. Sloane_, Sep 03 2013

%E a(11) and a(12) from _Jean-Fran├žois Alcover_, Oct 09 2018

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 14 07:18 EDT 2024. Contains 371655 sequences. (Running on oeis4.)