Number of strings of numbers x(i=1..5) in 0..n with sum i*x(i)^2 equal to n*25.

Terms

a(0) =3a(1) =8a(2) =19a(3) =32a(4) =39a(5) =92a(6) =101a(7) =146a(8) =255a(9) =255a(10) =315a(11) =557a(12) =499a(13) =652a(14) =975a(15) =921a(16) =1022a(17) =1692a(18) =1428a(19) =1641a(20) =2532a(21) =2233a(22) =2445a(23) =3649a(24) =2976a(25) =3451a(26) =5293a(27) =4683a(28) =4708a(29) =7005