Numbers k such that (10's complement factorial of k) - 1 is prime.
A109617
Numbers k such that (10's complement factorial of k) - 1 is prime.
Terms
- a(0) =2a(1) =3a(2) =4a(3) =7a(4) =77a(5) =337a(6) =397a(7) =566a(8) =615a(9) =822a(10) =1007a(11) =1017a(12) =1073a(13) =1351a(14) =1731a(15) =2635a(16) =6606a(17) =8513a(18) =10404
External references
- oeis: A109617