|
|
A231454
|
|
Number of (4+1)X(n+1) 0..3 arrays with no element unequal to a strict majority of its horizontal and antidiagonal neighbors, with values 0..3 introduced in row major order
|
|
1
|
|
|
102, 715, 4179, 33659, 265510, 2308095, 19926254, 176631385, 1561555803, 13912022969, 123840338169, 1104803608629, 9853222556132, 87927968432312, 784560526591484, 7001531270952580, 62480221546666098, 557583723488148875
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..1..1..2....0..0..1..1..2....0..0..1..1..0....0..0..1..1..2
..0..1..1..2..2....0..1..1..2..2....0..1..1..0..0....0..1..1..2..2
..0..0..0..0..2....1..3..3..3..3....2..2..0..0..0....2..2..2..2..0
..3..3..0..2..2....3..3..3..0..0....2..2..2..0..0....0..0..0..0..0
..3..0..0..0..0....0..0..0..0..0....2..2..0..0..0....0..0..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|