Largest integer m such that m divides (sigma_(2n+1)(2k-1)-sigma(2k-1)) for all k>=1.

Terms

a(0) =24a(1) =240a(2) =168a(3) =480a(4) =264a(5) =21840a(6) =24a(7) =16320a(8) =3192a(9) =2640a(10) =552a(11) =43680a(12) =24a(13) =6960a(14) =57288a(15) =32640a(16) =24a(17) =15353520a(18) =24a(19) =216480a(20) =7224a(21) =5520a(22) =1128a(23) =1485120a(24) =264a(25) =12720a(26) =3192a(27) =13920a(28) =1416a(29) =454293840