a(n) = Sum_{d|n, n/d odd} d^10 for n > 0.

Terms

a(0) =1a(1) =1024a(2) =59050a(3) =1048576a(4) =9765626a(5) =60467200a(6) =282475250a(7) =1073741824a(8) =3486843451a(9) =10000001024a(10) =25937424602a(11) =61918412800a(12) =137858491850a(13) =289254656000a(14) =576660215300