A206358 Number of nX7 0..4 arrays with no element equal to another within two positions in the same row or column, and new values 0..4 introduced in row major order

41, 48680, 9669452, 1973960628, 401471308746, 81929751806834

Offset

1,1

Comments

Column 7 of A206359

Links

Table of n, a(n) for n=1..6.

Example

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

Crossrefs

Sequence in context: A297052 A238566 A241327 * A222923 A262787 A176132

Adjacent sequences: A206355 A206356 A206357 * A206359 A206360 A206361

Keyword

nonn

Author

R. H. Hardin Feb 06 2012

Status

approved