A267740 Number of nX6 arrays of permutations of 6 copies of 0..n-1 with every element equal to or 1 greater than any west or northeast neighbors modulo n and the upper left element equal to 0.

1, 462, 786, 3428, 14138, 55105, 211044, 807164, 3087973, 11817336, 45232264, 173151134, 662878034, 2537840433, 9716563504, 37202855866, 142447146042, 545436779876, 2088564662921, 7997681304224, 30626181091364, 117282753874594

Offset

1,2

Comments

Column 6 of A267742.

Links

R. H. Hardin, Table of n, a(n) for n = 1..32

Example

Some solutions for n=4
..0..0..0..1..1..2....0..0..0..0..1..2....0..0..0..1..2..2....0..1..1..2..2..2
..0..1..1..2..2..3....1..1..1..1..2..2....0..1..1..2..3..3....2..2..2..3..3..3
..1..1..2..3..3..3....2..2..2..3..3..0....1..1..2..3..3..0....3..3..0..0..0..1
..2..2..3..3..0..0....3..3..3..3..0..1....2..2..3..3..0..1....3..0..0..1..1..1

Crossrefs

Cf. A267742.

Sequence in context: A353022 A104397 A108749 * A334408 A254468 A242321

Adjacent sequences: A267737 A267738 A267739 * A267741 A267742 A267743

Keyword

nonn

Author

R. H. Hardin, Jan 20 2016

Status

approved