Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.
A146041
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 2X4 tee 1,1 1,2 1,3 2,3 1,4 in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =5a(5) =21a(6) =83a(7) =385a(8) =2131a(9) =24025a(10) =318135a(11) =5078109a(12) =98561015a(13) =2403657061a(14) =86079554793
External references
- oeis: A146041