a(n) = Sum_{d|n, n/d==1 mod 4} d^11 - Sum_{d|n, n/d==3 mod 4} d^11.
A321835
a(n) = Sum_{d|n, n/d==1 mod 4} d^11 - Sum_{d|n, n/d==3 mod 4} d^11.
Terms
- a(0) =1a(1) =2048a(2) =177146a(3) =4194304a(4) =48828126a(5) =362795008a(6) =1977326742a(7) =8589934592a(8) =31380882463a(9) =100000002048a(10) =285311670610a(11) =743004176384
External references
- oeis: A321835