Number of strings of numbers x(i=1..n) in 0..6 with sum i^2*x(i)^2 equal to n^2*36.
A184237
Number of strings of numbers x(i=1..n) in 0..6 with sum i^2*x(i)^2 equal to n^2*36.
Terms
- a(0) =1a(1) =1a(2) =2a(3) =2a(4) =11a(5) =43a(6) =176a(7) =962a(8) =5920a(9) =32442a(10) =200063a(11) =1001781a(12) =5741231a(13) =27193559a(14) =138909230a(15) =637035484a(16) =2950387477a(17) =13201021106a(18) =57236617635a(19) =249376811696
External references
- oeis: A184237