OFFSET
1,1
EXAMPLE
a(4) = 8*10*12*14 + 1 = 13441, 8 + 1, 8*10 + 1, 8*10*12 + 1 are all composite.
MATHEMATICA
Do[p = k = 2*n; While[ !PrimeQ[p+1], k += 2; p *= k]; Print[p+1], {n, 1, 30}] (* Ryan Propper, Aug 15 2005 *)
CROSSREFS
KEYWORD
nonn,more
AUTHOR
Amarnath Murthy, Jul 20 2005
EXTENSIONS
More terms from Ryan Propper, Aug 15 2005
STATUS
approved