94850

Appears in sequences

• Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 101-111-010 pattern in any orientation.at n=14A146218
• a(n) = 196*n^2 - 14.at n=21A158553
• a(0) = 1; a(n) = Sum_{k=0..floor(n/4)} binomial(n+1,4*k+1) * a(k).at n=16A352902