329900

Appears in sequences

• Number of 2-colored patterns on an n X n board.at n=10A002619
• Adjusted recursive triangular sequence with row sums 2*(n+5)!/6!: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + (n + 4)*(n + 3)*A(n - 2, k - 1).at n=38A153738
• Adjusted recursive triangular sequence with row sums 2*(n+5)!/6!: A(n,k)= A(n - 1, k - 1) + A(n - 1, k) + (n + 4)*(n + 3)*A(n - 2, k - 1).at n=42A153738
• Number of vertices in a "frame" of size n X n (see Comments in A331776 for definition).at n=27A332598