Numbers k such that 21^k - 20^k is prime.
A062587
Numbers k such that 21^k - 20^k is prime.
Terms
- a(0) =2a(1) =19a(2) =41a(3) =43a(4) =337a(5) =479a(6) =9127a(7) =37549a(8) =44017a(9) =59971a(10) =128327a(11) =176191a(12) =193601
External references
- oeis: A062587