193296

Appears in sequences

• Number of 1:4:sqrt(17) proportioned triangles on a (n+1) X (n+1) grid.at n=35A189884
• Number of n X n X n 0..6 triangular arrays with each element x equal to the number its neighbors equal to 3,6,2,4,2,2,1 for x=0,1,2,3,4,5,6.at n=7A197706
• G.f.: x * Product_{k>=1} (1 + a(k)*(-x)^k)^((-1)^k).at n=15A308246