A198981 Number of nX7 0..5 arrays with values 0..5 introduced in row major order and no element equal to any horizontal or vertical neighbor

202, 3603244, 98102456246, 2692353648978984, 73900197917712351603, 2028430770889558380053172, 55676868201599759013090066735, 1528232414884966866457407229662199

Offset

1,1

Comments

Column 7 of A198982

Links

Table of n, a(n) for n=1..8.

Example

Some solutions with all values from 0 to 5 for n=4
..0..1..0..1..0..1..2....0..1..0..1..0..2..0....0..1..0..1..0..2..1
..1..0..1..0..3..2..4....1..0..1..0..3..0..4....1..0..1..0..3..4..5
..0..3..0..1..0..4..0....0..3..0..1..2..4..0....0..3..0..1..0..1..4
..3..0..1..0..5..3..5....3..0..1..0..4..5..4....3..0..1..0..1..5..3

Crossrefs

Sequence in context: A159382 A209501 A198526 * A259330 A090486 A348664

Adjacent sequences: A198978 A198979 A198980 * A198982 A198983 A198984

Keyword

nonn

Author

R. H. Hardin Nov 01 2011

Status

approved