Sum of the 4th powers of the divisor complements of the odd proper divisors of n.

Terms

a(0) =0a(1) =16a(2) =81a(3) =256a(4) =625a(5) =1312a(6) =2401a(7) =4096a(8) =6642a(9) =10016a(10) =14641a(11) =20992a(12) =28561a(13) =38432a(14) =51331a(15) =65536a(16) =83521a(17) =106288a(18) =130321a(19) =160256a(20) =196963a(21) =234272a(22) =279841a(23) =335872a(24) =391250a(25) =456992a(26) =538083a(27) =614912a(28) =707281a(29) =821312