296800

Appears in sequences

• Number of (n+2)X(n+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two.at n=4A254846
• Number of (n+2)X(5+2) 0..1 arrays with no 3x3 subblock diagonal sum one and no antidiagonal sum two.at n=4A254851
• Number of polygons formed when every pair of vertices of a regular n-gon are joined by an infinite line.at n=40A344857
• Number of polygons formed when every pair of vertices of a regular (2n-1)-gon are joined by an infinite line.at n=20A344866
• G.f. A(x) satisfies: A(x) = x + x^2 * exp( Sum_{k>=1} A(x^k)^3 / (k*x^(2*k)) ).at n=12A363465