T(n,k)=Number of nXnXn triangular 0..k arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.

A271437

T(n,k)=Number of nXnXn triangular 0..k arrays with new values introduced in sequential zero-upwards order and exactly one 2x2x2 triangle having values all equal and exactly one 2x2x2 triangle having values all different.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =0a(7) =0a(8) =12a(9) =0a(10) =0a(11) =0a(12) =12a(13) =864a(14) =0a(15) =0a(16) =0a(17) =12a(18) =1503a(19) =41328a(20) =0a(21) =0a(22) =0a(23) =12a(24) =1620a(25) =114696a(26) =2009952a(27) =0a(28) =0a(29) =0

External references