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

Terms

a(0) =0a(1) =1a(2) =1a(3) =1a(4) =1a(5) =82a(6) =1a(7) =1a(8) =82a(9) =626a(10) =1a(11) =82a(12) =1a(13) =2402a(14) =707a(15) =1a(16) =1a(17) =6643a(18) =1a(19) =626a(20) =2483a(21) =14642a(22) =1a(23) =82a(24) =626a(25) =28562a(26) =6643a(27) =2402a(28) =1a(29) =51332