1046550

Appears in sequences

• Number of triangles similar to their n-th pedal, and not similar to any k-th pedal for k < n.at n=9A102536
• Number of defective 4-colorings of an n X 7 0..3 array connected horizontally, vertically, diagonally and antidiagonally with exactly two mistakes, and colors introduced in row-major 0..3 order.at n=8A229754