Number of (n+1)X2 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.
A205174
Number of (n+1)X2 0..3 arrays with the permanents of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =256a(1) =2504a(2) =23244a(3) =177050a(4) =1284356a(5) =8458978a(6) =53679123a(7) =323510768a(8) =1900038196a(9) =10843837860a(10) =60860178932a(11) =336133010594
External references
- oeis: A205174