Sigma(n) values in A115920.

Terms

a(0) =1a(1) =96a(2) =528a(3) =720a(4) =672a(5) =960a(6) =936a(7) =3192a(8) =6552a(9) =3912a(10) =3904a(11) =7368a(12) =3976a(13) =4912a(14) =9520a(15) =7936a(16) =8512a(17) =11032a(18) =18720a(19) =13192a(20) =51480a(21) =18736a(22) =52080a(23) =62244a(24) =32928a(25) =32496a(26) =52416a(27) =62244a(28) =78624a(29) =78624