Least number k >= 0 such that (n!+k)/n is prime.

Terms

a(0) =1a(1) =2a(2) =0a(3) =4a(4) =25a(5) =42a(6) =49a(7) =88a(8) =207a(9) =170a(10) =121a(11) =12a(12) =377a(13) =938a(14) =285a(15) =688a(16) =391a(17) =558a(18) =703a(19) =1780a(20) =609a(21) =682a(22) =713a(23) =2328a(24) =3275a(25) =1066a(26) =1593a(27) =28a(28) =1943a(29) =6690