T(n,k)=Number of triangular nXnXn 0..k arrays with all rows and diagonals having the same length having the same sum, with corners zero.

A195805

T(n,k)=Number of triangular nXnXn 0..k arrays with all rows and diagonals having the same length having the same sum, with corners zero.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =2a(6) =1a(7) =1a(8) =3a(9) =8a(10) =1a(11) =1a(12) =4a(13) =27a(14) =16a(15) =1a(16) =1a(17) =5a(18) =64a(19) =105a(20) =64a(21) =1a(22) =1a(23) =6a(24) =125a(25) =496a(26) =1695a(27) =1184a(28) =1a(29) =1

External references