A230729 Number of nX7 0..5 arrays x(i,j) with each element horizontally or antidiagonally next to at least one element with value (x(i,j)+1) mod 6, and upper left element zero

0, 120, 32094, 9059304, 2754151172, 819577760474, 243012308326942, 72110003488927180, 21398916870200403146, 6350146791602665380262, 1884420517721946748940350, 559205954696949095788053264

Offset

1,2

Comments

Column 7 of A230730

Links

R. H. Hardin, Table of n, a(n) for n = 1..100

Example

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

Crossrefs

Sequence in context: A278726 A227667 A054778 * A027493 A145407 A010798

Adjacent sequences: A230726 A230727 A230728 * A230730 A230731 A230732

Keyword

nonn

Author

R. H. Hardin, Oct 28 2013

Status

approved