Number of nX6 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
A200988
Number of nX6 0..4 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.
Terms
- a(0) =5a(1) =226a(2) =3157a(3) =15023a(4) =27000a(5) =752271a(6) =8434277a(7) =39361323a(8) =80878071a(9) =64001290a(10) =1061617971a(11) =6885026630a(12) =20690808333a(13) =29111264965a(14) =15934951732a(15) =200246707818a(16) =986856290325
External references
- oeis: A200988