Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1100-0111-0010 pattern in any orientation.
A147150
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1100-0111-0010 pattern in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =1a(5) =5a(6) =15a(7) =33a(8) =101a(9) =729a(10) =5159a(11) =33035a(12) =302287a(13) =3979621a(14) =62594669a(15) =1090041091a(16) =25034274381a(17) =742760513733
External references
- oeis: A147150