A197535 Number of n X 6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,0 for x=0,1,2,3,4.

16, 160, 3500, 62586, 1220630, 23325250, 454280983, 8844380028, 172982554332, 3386294190736, 66356347688978, 1300795127521094, 25506585069158562, 500211695453958433, 9810478953775130079, 192417797960470740096

Offset

1,1

Comments

Every 0 is next to 0 2's, every 1 is next to 1 0's, every 2 is next to 2 1's, every 3 is next to 3 0's, every 4 is next to 4 0's.

Column 6 of A197537.

Links

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

Example

Some solutions containing all values 0 to 4 for n=4:
..0..0..0..0..3..0....1..1..1..1..2..1....0..0..0..3..0..1....1..1..2..1..1..1
..3..0..0..4..0..0....0..0..0..0..3..0....0..0..4..0..3..2....0..0..3..0..0..0
..0..3..0..0..3..0....0..0..0..4..0..0....0..0..0..0..0..1....3..0..0..4..0..3
..1..2..1..1..2..1....0..0..3..0..3..0....0..3..0..0..0..1....0..0..0..0..3..0

Crossrefs

Cf. A197537.

Sequence in context: A053410 A225591 A197677 * A204297 A000811 A041484

Adjacent sequences: A197532 A197533 A197534 * A197536 A197537 A197538

Keyword

nonn

Author

R. H. Hardin, Oct 16 2011

Status

approved