Number of (n+1)X7 0..1 arrays with the permanents of all 2X2 subblocks equal and nonzero.
A204711
Number of (n+1)X7 0..1 arrays with the permanents of all 2X2 subblocks equal and nonzero.
Terms
- a(0) =193a(1) =1361a(2) =8705a(3) =58449a(4) =382849a(5) =2542369a(6) =16748161a(7) =110871041a(8) =731709057a(9) =4838473473a(10) =31954317953a(11) =211206670209
External references
- oeis: A204711