%I
%S 17,8126654054401
%N Primes of the form 1 + product of the first n 4almost primes A014613.
%C The next term is too large to display here.  _N. J. A. Sloane_, Jul 30 2009
%C 4almost prime analog of primorial primes A005234 (primes p such that 1 + product of primes up to p is prime) as indexed by A014545 (n such that nth Euclid number (A006862(n)) = 1 + (Product of first n primes) is prime). In that sense, this sequence is indexed by (1, 8, ...). No more through product of first 16 of the 4almost primes.
%C Terms are one more than the products of 4almost primes up to 16, 81, 294, 513, 825, 1356, 1612, 2004, 2756, 7714, ...  _Charles R Greathouse IV_, Jul 28 2009
%F {a(n)} = {1 + Prod[from i = 1 to n] A014613(i)} INTERSECTION {A000040}.
%e a(1) = 17 because 1 + 16 = 1 + A014613(1) = 1 more than the first 4almost prime is itself prime.
%e a(2) = 8126654054401 = 1 + (16 * 24 * 36 * 40 * 54 * 56 * 60 * 81) = 1 more than the product of the first 8 of the 4almost primes and is prime.
%Y Cf. A000040, A001358, A014612, A002110, A005234, A014545, A112141.
%K nonn,bref
%O 1,1
%A _Jonathan Vos Post_, Feb 13 2006
