A233145 Number of nX6 0..5 arrays with no element x(i,j) adjacent to value 5-x(i,j) horizontally, antidiagonally or vertically, top left element zero, and 1 appearing before 2 3 and 4, and 2 appearing before 3 in row major order

452, 1158334, 3556749764, 10976545771938, 33888199682535539, 104628720219120084935, 323040050513644831673711, 997383803217605432845939113, 3079415768120334362937355766441

Offset

1,1

Comments

Column 6 of A233147

Links

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

Example

Some solutions for n=2
..0..0..1..2..1..1....0..0..1..2..4..5....0..0..0..1..0..0....0..0..1..1..1..2
..1..0..0..2..5..3....1..1..0..2..4..3....2..1..1..0..3..4....2..1..0..2..0..0

Crossrefs

Sequence in context: A318627 A206217 A233228 * A233237 A233111 A233215

Adjacent sequences: A233142 A233143 A233144 * A233146 A233147 A233148

Keyword

nonn

Author

R. H. Hardin, Dec 04 2013

Status

approved