Number of (n+1)X6 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero.
A204873
Number of (n+1)X6 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero.
Terms
- a(0) =12241a(1) =219871a(2) =1912223a(3) =27234451a(4) =282748327a(5) =3677014705a(6) =41067117035a(7) =514372854783
External references
- oeis: A204873