A186910 Number of (n+2)X6 0..6 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order

22000126445, 2536761070723, 171334955820947, 8185872059408158, 300268014063911584, 8880688768983407407, 219019175194540430058, 4617630757685272558765, 84844963231516976756260

Offset

1,1

Comments

Column 4 of A186915

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

R. H. Hardin, Polynomial of degree 101

Formula

Polynomial of degree 101 in n, see link.

Example

Some solutions for 4X6
..0..0..0..0..0..4....0..0..0..0..0..3....0..0..0..0..0..5....0..0..0..0..0..0
..0..0..0..0..2..5....0..0..0..0..1..2....0..0..0..0..2..2....0..0..0..0..0..6
..0..0..0..0..3..5....0..0..0..0..1..3....0..0..0..0..2..5....0..0..0..0..1..1
..0..0..0..0..6..2....0..0..0..0..5..4....0..0..0..0..5..2....0..0..0..0..3..1

Crossrefs

Sequence in context: A119478 A337914 A101816 * A129250 A216398 A121841

Adjacent sequences: A186907 A186908 A186909 * A186911 A186912 A186913

Keyword

nonn

Author

R. H. Hardin Feb 28 2011

Status

approved