Least nonnegative m such that n! - m is prime.

Terms

a(0) =0a(1) =1a(2) =1a(3) =7a(4) =1a(5) =1a(6) =31a(7) =13a(8) =11a(9) =13a(10) =1a(11) =23a(12) =1a(13) =47a(14) =53a(15) =59a(16) =41a(17) =101a(18) =31a(19) =31a(20) =73a(21) =89a(22) =73a(23) =149a(24) =37a(25) =43a(26) =101a(27) =31a(28) =1a(29) =61