Zsigmondy numbers for a = 7, b = 1: Zs(n, 7, 1) is the greatest divisor of 7^n - 1^n (A024075) that is relatively prime to 7^m - 1^m for all positive integers m < n.
A064083
Zsigmondy numbers for a = 7, b = 1: Zs(n, 7, 1) is the greatest divisor of 7^n - 1^n (A024075) that is relatively prime to 7^m - 1^m for all positive integers m < n.
Terms
- a(0) =6a(1) =1a(2) =19a(3) =25a(4) =2801a(5) =43a(6) =137257a(7) =1201a(8) =39331a(9) =2101a(10) =329554457a(11) =2353a(12) =16148168401a(13) =102943a(14) =4956001a(15) =2882401a(17) =117307a(19) =1129901a(20) =11898664849a(21) =247165843a(23) =5762401
External references
- oeis: A064083