Numbers k such that the sum of the digits of sigma(k)^k is divisible by k.
A109659
Numbers k such that the sum of the digits of sigma(k)^k is divisible by k.
Terms
- a(0) =1a(1) =15a(2) =20a(3) =34a(4) =42a(5) =44a(6) =50a(7) =101a(8) =107a(9) =558a(10) =584a(11) =750a(12) =1491a(13) =2793a(14) =2889a(15) =15811a(16) =27285a(17) =60030a(18) =67258a(19) =87066
External references
- oeis: A109659