Sum of 5th powers of the divisors of odd numbers: a(n) = sigma_5(2n-1).

Terms

a(0) =1a(1) =244a(2) =3126a(3) =16808a(4) =59293a(5) =161052a(6) =371294a(7) =762744a(8) =1419858a(9) =2476100a(10) =4101152a(11) =6436344a(12) =9768751a(13) =14408200a(14) =20511150a(15) =28629152a(16) =39296688a(17) =52541808a(18) =69343958a(19) =90595736a(20) =115856202a(21) =147008444a(22) =185349918a(23) =229345008a(24) =282492057a(25) =346445352a(26) =418195494a(27) =503448552a(28) =604168400