a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^12.
A321809
a(n) = Sum_{d divides n} (-1)^(d + n/d) * d^12.
Terms
- a(0) =1a(1) =-4097a(2) =531442a(3) =-16773121a(4) =244140626a(5) =-2177317874a(6) =13841287202a(7) =-68702695425a(8) =282430067923
External references
- oeis: A321809