Numerator of (1^2/n + 2^2/(n-1) + ... + k^2/(n-k+1) + ... + (n-1)^2/2 + n^2/1).

Terms

a(0) =1a(1) =9a(2) =34a(3) =265a(4) =186a(5) =1141a(6) =2868a(7) =31401a(8) =18635a(9) =477301a(10) =91192a(11) =8051069a(12) =4508441a(13) =3336145a(14) =22048024a(15) =410111791a(16) =223063947a(17) =3057889621a(18) =823596665a(19) =706952715a(20) =125961187a(21) =6173866701a(22) =9838037952a(23) =521135614075a(24) =275363139571