51678

Appears in sequences

• A recursion triangle sequence based on the Eulerian numbers: A(n,k)=n*A(n-1,k-1)+k*Eulerian(n-1,k).at n=33A157743
• Number of ways to place 2 non-attacking wazirs on an n X n toroidal board.at n=17A201236
• Number of maximal cliques in the n-polygon diagonal intersection graph.at n=30A291949
• a(n) = 36*n^2 - 8*n - 2 (n >=1).at n=37A304834