50330

Appears in sequences

• Base 5 digits are, in order, the first n terms of the periodic sequence with initial period 3,1,0,2.at n=6A037773
• The sum of the principal diagonals of an n X n spiral.at n=42A137930
• Sum of the principal diagonals of a 2n X 2n square spiral.at n=21A137931
• Number of 8-step S, NW and NE-moving king's tours on an n X n board summed over all starting positions.at n=9A187382