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A197349
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,3,1,1,0 for x=0,1,2,3,4
1
1, 249, 3155, 71411, 1367870, 28226359, 617973077, 13101311077, 275521117202, 5873309926156, 125869557117323, 2679302153154361, 57014937116227499, 1216703701139959983, 25962340043703794411, 553346306492392023723
OFFSET
1,2
COMMENTS
Every 0 is next to 0 3's, every 1 is next to 1 3's, every 2 is next to 2 1's, every 3 is next to 3 1's, every 4 is next to 4 0's
Column 7 of A197350
LINKS
EXAMPLE
Some solutions containing all values 0 to 4 for n=4
..0..0..0..1..3..1..0....0..0..0..0..1..3..1....1..3..1..1..3..1..2
..1..0..4..0..1..0..0....0..0..0..0..0..1..1....0..1..0..0..1..0..1
..3..1..0..4..0..1..0....2..1..0..4..0..1..3....0..1..0..4..0..1..3
..1..2..0..0..1..3..1....1..3..1..0..0..0..1....1..3..1..0..0..2..1
CROSSREFS
Sequence in context: A030650 A299831 A045254 * A197400 A371491 A225209
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 13 2011
STATUS
approved