A201275 Number of n X 6 0..2 arrays with every row and column nondecreasing rightwards and downwards, and the number of instances of each value within one of each other.

1, 1, 9, 41, 143, 442, 1260, 3113, 7331, 15969, 32737, 63942, 120318, 216392, 377902, 640970, 1055829, 1699241, 2679576, 4132842, 6267048, 9345121, 13712218, 19841970, 28343579, 39963063, 55722233, 76873873, 104958237, 141966994, 190366323, 253040267, 333758897

Offset: 0

Author

R. H. Hardin, Nov 29 2011

Keywords

• nonn

Examples

			Some solutions for n=5:
  0 0 0 0 0 0   0 0 0 1 1 1   0 0 0 0 0 0   0 0 0 0 1 1
  0 0 1 1 1 1   0 0 0 1 1 1   0 0 0 1 1 1   0 0 0 1 1 1
  0 1 1 1 2 2   0 0 1 1 1 1   0 1 1 1 1 2   0 1 1 1 1 2
  0 1 1 1 2 2   0 2 2 2 2 2   1 1 1 2 2 2   0 1 2 2 2 2
  2 2 2 2 2 2   0 2 2 2 2 2   2 2 2 2 2 2   0 2 2 2 2 2
		

Links

• Alois P. Heinz, Table of n, a(n) for n = 0..200 (terms n = 1..101 from R. H. Hardin)

Crossrefs

Column 6 of A201277.

Extensions

a(0)=1 prepended by Alois P. Heinz, Mar 18 2024