Number of n X n X n 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,3,2,1,0,0,2 for x=0,1,2,3,4,5,6.

A197949

Number of n X n X n 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,3,2,1,0,0,2 for x=0,1,2,3,4,5,6.

Terms

    a(0) =1a(1) =2a(2) =8a(3) =56a(4) =580a(5) =12366a(6) =444569a(7) =29249179a(8) =3524964899a(9) =767105714843

External references