821761

Appears in sequences

• a(n) = 2048n^2 + 128n + 1.at n=19A157476
• Number of n X 2 0..1 arrays with every element both equal and not equal to some elements at offset (-1,0) (-1,1) (0,-1) (0,1) or (1,0), with upper left element zero.at n=14A278088