Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0100-1111-0010 pattern in any orientation.
A146368
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0100-1111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =13a(7) =31a(8) =121a(9) =491a(10) =3363a(11) =25731a(12) =206631a(13) =2160127a(14) =27517339a(15) =451415709a(16) =9252755391a(17) =223401136265
External references
- oeis: A146368