OFFSET
1,2
COMMENTS
LINKS
Jens Kruse Andersen, Table of n, a(n) for n = 1..100
V. Shevelev, Theorems on twin primes-dual case, arXiv:0912.4006 (Sections 10,11,14-18)
MATHEMATICA
a[n_] := Mod[(Prime[n]-2)! + 2, Product[Prime[i], {i, 1, n}]];
Array[a, 19] (* Jean-François Alcover, Dec 15 2018 *)
PROG
(PARI) a(n) = ((prime(n)-2)!+2) % prod(i=1, n, prime(i)) \\ Jens Kruse Andersen, Jul 22 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Shevelev, Jul 22 2014
EXTENSIONS
More terms and simpler definition from Jens Kruse Andersen, Jul 22 2014
STATUS
approved