Sum of squares of odd divisors of n.

Terms

a(0) =1a(1) =1a(2) =10a(3) =1a(4) =26a(5) =10a(6) =50a(7) =1a(8) =91a(9) =26a(10) =122a(11) =10a(12) =170a(13) =50a(14) =260a(15) =1a(16) =290a(17) =91a(18) =362a(19) =26a(20) =500a(21) =122a(22) =530a(23) =10a(24) =651a(25) =170a(26) =820a(27) =50a(28) =842a(29) =260