Number of strings of numbers x(i=1..7) in 0..n with sum i^2*x(i)^3 equal to 49*n^3.

Terms

a(0) =2a(1) =3a(2) =6a(3) =16a(4) =38a(5) =50a(6) =69a(7) =139a(8) =188a(9) =284a(10) =336a(11) =550a(12) =608a(13) =910a(14) =964a(15) =1475a(16) =1713a(17) =2152a(18) =2304a(19) =3470a(20) =3486a(21) =4664a(22) =4865a(23) =6371a(24) =6671a(25) =8902a(26) =8968a(27) =11555a(28) =12194a(29) =14871