Primes of the form k!*m! + 1, with k <= m.

Terms

a(0) =2a(1) =3a(2) =5a(3) =7a(4) =13a(5) =37a(6) =241a(7) =577a(8) =14401a(9) =30241a(10) =241921a(11) =604801a(12) =2177281a(13) =8709121a(14) =29030401a(15) =39916801a(16) =87091201a(17) =261273601a(18) =958003201a(19) =2874009601a(20) =18289152001a(21) =37362124801a(22) =131681894401a(23) =201180672001