866819

Properties

Appears in sequences

• Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 110-100-111 pattern in any orientation.at n=15A146177
• p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S - 2 S^2)^2.at n=13A291255
• Prime numbersat n=68851