A196076 Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 0,3,2,1,4 for x=0,1,2,3,4

0, 2, 8, 60, 296, 1126, 4237, 24210, 91541, 440533, 1942297, 8497706, 37987962, 169158221, 750990638, 3344857959, 14827515754, 65958541835, 293291341441, 1303464660150, 5793684155190, 25748199147004, 114445600714047

Offset

1,2

Comments

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

Column 6 of A196078

Links

R. H. Hardin, Table of n, a(n) for n = 1..200

Example

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

Crossrefs

Sequence in context: A181010 A197941 A295502 * A027278 A001415 A305730

Adjacent sequences: A196073 A196074 A196075 * A196077 A196078 A196079

Keyword

nonn

Author

R. H. Hardin Sep 27 2011

Status

approved