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

A146440

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

Terms

    a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =9a(6) =23a(7) =51a(8) =307a(9) =2165a(10) =14201a(11) =97965a(12) =1157935a(13) =17853615a(14) =293568879a(15) =5611957605a(16) =149513863877

External references