Number of strings of numbers x(i=1..n) in 0..6 with sum i^3*x(i) equal to n^3*6.

A184254

Number of strings of numbers x(i=1..n) in 0..6 with sum i^3*x(i) equal to n^3*6.

Terms

    a(0) =1a(1) =1a(2) =3a(3) =5a(4) =19a(5) =79a(6) =333a(7) =1393a(8) =5725a(9) =23408a(10) =94067a(11) =372806a(12) =1452902a(13) =5573547a(14) =21048926a(15) =78294082a(16) =286989576a(17) =1037232520a(18) =3698189056a(19) =13015198750a(20) =45236281727a(21) =155352127515a(22) =527417864879

External references