Number of (n+1) X 3 0..1 arrays with the determinants of 2 X 2 subblocks nondecreasing rightwards and downwards.
A204610
Number of (n+1) X 3 0..1 arrays with the determinants of 2 X 2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =47a(1) =181a(2) =749a(3) =3254a(4) =14199a(5) =62031a(6) =271125a(7) =1185255a(8) =5181921a(9) =22656123a(10) =99057573a(11) =433104831a(12) =1893650697a(13) =8279562627a(14) =36200555181a(15) =158278967559a(16) =692040086289
External references
- oeis: A204610