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A196595
Number of n X n 0..4 arrays with each element x equal to the number of its horizontal and vertical neighbors equal to 1,2,4,0,3 for x=0,1,2,3,4
0
1, 1, 16, 129, 4529, 231416, 26951945, 6221649467, 2919406668996, 2782242914671635, 5383447846721810305, 21145417017943626638884, 168603262296463050704402257, 2729058135478644158855915675547
OFFSET
1,3
COMMENTS
Every 0 is next to 0 1's, every 1 is next to 1 2's, every 2 is next to 2 4's, every 3 is next to 3 0's, every 4 is next to 4 3's
Diagonal of A196601
EXAMPLE
Some solutions for n=4
..0..0..0..0....0..3..0..0....0..0..0..0....0..0..0..0....0..3..0..0
..3..0..0..3....0..0..0..0....0..0..0..0....0..3..3..0....3..0..0..0
..0..0..0..0....0..0..0..3....3..0..0..3....0..0..0..0....0..0..0..3
..0..3..0..0....0..0..0..0....0..0..0..0....0..0..3..0....0..3..0..0
CROSSREFS
Sequence in context: A099195 A041486 A196642 * A055914 A255816 A335560
KEYWORD
nonn
AUTHOR
R. H. Hardin Oct 04 2011
STATUS
approved