A196589 Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,0,1,4 for x=0,1,2,3,4

13, 2057, 141460, 8980645, 578185580, 37529013812, 2443612706889, 158784115135859, 10325602150894612, 671207897573507284, 43631583378058347698, 2836674439983859775124, 184408814903864188587732

Offset

1,1

Comments

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

Column 7 of A196590

Links

R. H. Hardin, Table of n, a(n) for n = 1..87

Example

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

Crossrefs

Sequence in context: A177914 A128394 A196801 * A197046 A283633 A221823

Adjacent sequences: A196586 A196587 A196588 * A196590 A196591 A196592

Keyword

nonn

Author

R. H. Hardin Oct 04 2011

Status

approved