Primes of form repdigit - 1. Primes whose sum of divisors is a decimal repdigit.
A096843
Primes of form repdigit - 1. Primes whose sum of divisors is a decimal repdigit.
Terms
- a(0) =2a(1) =3a(2) =5a(3) =7a(4) =43a(5) =443a(6) =887a(7) =2221a(8) =8887a(9) =444443a(10) =888887a(11) =444444443a(12) =888888887a(13) =444444444443a(14) =888888888887
External references
- oeis: A096843