Numbers n such that n = reversal(sigma(n)) - 2.
A230768
Numbers n such that n = reversal(sigma(n)) - 2.
Terms
- a(0) =21a(1) =291a(2) =2991a(3) =43954a(4) =211552a(5) =439954a(6) =880099a(7) =43564354a(8) =43999954a(9) =464057476a(10) =43999999954a(11) =435600004354a(12) =439560043954a(13) =439999999954
External references
- oeis: A230768