Number of strings of numbers x(i=1..n) in 0..5 with sum i^3*x(i)^2 equal to n^3*25.

A184299

Number of strings of numbers x(i=1..n) in 0..5 with sum i^3*x(i)^2 equal to n^3*25.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =2a(4) =1a(5) =11a(6) =21a(7) =167a(8) =616a(9) =2308a(10) =7792a(11) =42090a(12) =164290a(13) =733278a(14) =2785855a(15) =13613231a(16) =54109235a(17) =230492863a(18) =899895753a(19) =3997708404a(20) =16033421220

External references