Number of (n+1)X7 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero.
A204874
Number of (n+1)X7 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero.
Terms
- a(0) =36285a(1) =1174669a(2) =11644559a(3) =320519921a(4) =3677014705a(5) =94493071327
External references
- oeis: A204874