Smallest prime factor of n!+1.

Terms

a(0) =2a(1) =2a(2) =3a(3) =7a(4) =5a(5) =11a(6) =7a(7) =71a(8) =61a(9) =19a(10) =11a(11) =39916801a(12) =13a(13) =83a(14) =23a(15) =59a(16) =17a(17) =661a(18) =19a(19) =71a(20) =20639383a(21) =43a(22) =23a(23) =47a(24) =811a(25) =401a(26) =1697a(28) =29a(29) =14557a(30) =31