Half the number of nXnXn triangular binary arrays with every element unequal to at most 3 neighbors.

A192499

Half the number of nXnXn triangular binary arrays with every element unequal to at most 3 neighbors.

Terms

    a(0) =1a(1) =4a(2) =26a(3) =196a(4) =2092a(5) =28686a(6) =534806a(7) =13182070a(8) =433981798a(9) =19015675154

External references