257097

Appears in sequences

• a(1)=1, a(n) = 22*a(n-1) + n.at n=4A014907
• Number of (4+2)X(n+2) 0..4 arrays with every consecutive three elements in every row and diagonal having exactly two distinct values, and in every column and antidiagonal not having exactly two distinct values, and new values 0 upwards introduced in row major order.at n=16A252965
• Number of nX4 0..1 arrays with every element unequal to 1, 2, 3 or 6 king-move adjacent elements, with upper left element zero.at n=17A304145