a(n) = Sum_{d|n} min(d, n/d)^5.

Terms

a(0) =1a(1) =2a(2) =2a(3) =34a(4) =2a(5) =66a(6) =2a(7) =66a(8) =245a(9) =66a(10) =2a(11) =552a(12) =2a(13) =66a(14) =488a(15) =1090a(16) =2a(17) =552a(18) =2a(19) =2114a(20) =488a(21) =66a(22) =2a(23) =2600a(24) =3127a(25) =66a(26) =488a(27) =2114a(28) =2a(29) =6802