a(n) = Sum_{d|n} (-1)^(n/d+1)*d^12.
A321557
a(n) = Sum_{d|n} (-1)^(n/d+1)*d^12.
Terms
- a(0) =1a(1) =4095a(2) =531442a(3) =16773119a(4) =244140626a(5) =2176254990a(6) =13841287202a(7) =68702695423a(8) =282430067923a(9) =999755863470
External references
- oeis: A321557