140702

Appears in sequences

• Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 3X3 plus 2,1 2,2 2,3 1,2 3,2.at n=12A146004
• G.f. satisfies A(x) = 1 + x*A(x)^4*(1 - x).at n=8A367016