C=: 359344964622775339841352348439200241924659634x%10^45x
P=: {{ <. (0 2 4 p.y)*1|C*!_1 2 p.y }}@x:
P 1+i.18
2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61
Sadly, this stops producing prime numbers for larger values of y.
I'm told that there's a more exact value for C, where this expression
would produce arbitrarily large prime numbers. But I don't know how to
calculate a more accurate value for C.
--
Raul
----------------------------------------------------------------------
For information about J forums see http://www.jsoftware.com/forums.htm
