A224389 Number of nX6 0..3 arrays with diagonals and antidiagonals unimodal and rows nondecreasing

84, 7056, 319769, 9331553, 211856287, 4364554008, 90682660877, 1970202629627, 44404431681110, 1020688669518185, 23669944875525397, 551060981056174321, 12857376512847673306, 300489121615902701612, 7032615140846782176382

Offset

1,1

Comments

Column 6 of A224391

Links

R. H. Hardin, Table of n, a(n) for n = 1..210

Example

Some solutions for n=3
..0..0..1..2..2..2....0..1..1..1..1..3....2..2..2..2..2..3....0..2..3..3..3..3
..0..2..3..3..3..3....0..0..1..3..3..3....2..2..3..3..3..3....2..2..2..2..2..3
..0..0..3..3..3..3....0..2..2..2..2..2....0..0..1..1..2..2....0..0..0..0..0..0

Crossrefs

Sequence in context: A097840 A224177 A223869 * A223991 A224022 A283947

Adjacent sequences: A224386 A224387 A224388 * A224390 A224391 A224392

Keyword

nonn

Author

R. H. Hardin Apr 05 2013

Status

approved