Nonprime numbers k that divide the sum of remainders of k' mod m, for m from 1 to k', where k' is the arithmetic derivative of k.
A248135
Nonprime numbers k that divide the sum of remainders of k' mod m, for m from 1 to k', where k' is the arithmetic derivative of k.
Terms
- a(0) =1a(1) =12a(2) =52a(3) =840a(4) =988a(5) =1461a(6) =4926a(7) =21376a(8) =130484a(9) =210840a(10) =297158
External references
- oeis: A248135