75405

Appears in sequences

• Number of nXn 0..1 arrays with every element unequal to 0, 1, 2, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=5A317377
• Number of nX6 0..1 arrays with every element unequal to 0, 1, 2, 5, 6, 7 or 8 king-move adjacent elements, with upper left element zero.at n=5A317381
• Number of nonnegative solutions to (x_1)^2 + (x_2)^2 + ... + (x_8)^2 <= n.at n=32A341403
• Indices of the triangular numbers in A189475.at n=37A358417