Number of (n+1)X4 0..1 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.
A204718
Number of (n+1)X4 0..1 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =156a(1) =1271a(2) =9657a(3) =67518a(4) =457635a(5) =2995945a(6) =19292513a(7) =122364692a(8) =769496369a(9) =4805715229a(10) =29884389399a(11) =185240266936
External references
- oeis: A204718