Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 2X3 U in any orientation.
A146062
Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 2X3 U in any orientation.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =5a(4) =13a(5) =37a(6) =193a(7) =825a(8) =4833a(9) =42541a(10) =409765a(11) =5652913a(12) =85462407a(13) =1745289105a(14) =41548085965
External references
- oeis: A146062