A124669 Product of successive primes minus 2.

4, 13, 33, 75, 141, 219, 321, 435, 665, 897, 1145, 1515, 1761, 2019, 2489, 3125, 3597, 4085, 4755, 5181, 5765, 6555, 7385, 8631, 9795, 10401, 11019, 11661, 12315, 14349, 16635, 17945, 19041, 20709, 22497, 23705, 25589, 27219, 28889, 30965, 32397

Offset: 1

Author

Cino Hilliard, Dec 27 2006

Keywords

• easy
• nonn

Links

• Harvey P. Dale, Table of n, a(n) for n = 1..1000

Crossrefs

Cf. A123921.

Programs

Mathematica

Times@@@Partition[Prime[Range[50]],2,1]-2 (* Harvey P. Dale, Nov 02 2020 *)

PARI

g(n) = forprime(x=1,n,if(isprime(x+2),y=x*(x+2)-2;print1(y",")))