Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation.

A147046

Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0100-1100-0111-0010 pattern in any orientation.

Terms

    a(0) =1a(1) =1a(2) =1a(3) =3a(4) =5a(5) =13a(6) =29a(7) =101a(8) =469a(9) =2569a(10) =14457a(11) =96029a(12) =884501a(13) =9747473a(14) =128659273a(15) =1994890829a(16) =37888899645a(17) =865586757513

External references