OFFSET
1,1
COMMENTS
What is the next prime? As of January 2012, there are no known primes ending in 9 with this property.
LINKS
G. L. Honaker, Jr. and Chris Caldwell, Prime Curios! 8641
FORMULA
a(n) are the prime values of p(0)# * (p(0)# * p(1)#) * (p(0)# * p(1)# * p(2)#) * (p(0)# * p(1)# * p(2)# * ... * p(n)#) +/- 1.
MATHEMATICA
Select[Flatten[Table[Product[Product[Product[Prime[i], {i, j}], {j, k}], {k, n}] - 1 + m, {n, 0, 7}, {m, 0, 2, 2}]], PrimeQ]
CROSSREFS
KEYWORD
hard,nonn
AUTHOR
Arkadiusz Wesolowski, Jan 06 2012
STATUS
approved