Sum of 4th powers of odd divisors of n.

Terms

a(0) =1a(1) =1a(2) =82a(3) =1a(4) =626a(5) =82a(6) =2402a(7) =1a(8) =6643a(9) =626a(10) =14642a(11) =82a(12) =28562a(13) =2402a(14) =51332a(15) =1a(16) =83522a(17) =6643a(18) =130322a(19) =626a(20) =196964a(21) =14642a(22) =279842a(23) =82a(24) =391251a(25) =28562a(26) =538084a(27) =2402a(28) =707282a(29) =51332