OFFSET
1,1
COMMENTS
The primes in this sequence begin 2, 5, 17; where 5 is itself a factorial prime 3!-1. What is the next prime in the sequence?
FORMULA
a(n) = SUM[i=1..n] A088054(i) = SUM[i=1..n] {primes which are within 1 of a factorial number}.
CROSSREFS
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Jan 25 2010
STATUS
approved