|
|
A275400
|
|
Number of nX7 0..2 arrays with no element equal to any value at offset (-2,-1) (-2,0) or (-1,1) and new values introduced in order 0..2.
|
|
1
|
|
|
365, 69984, 65344, 186538, 566331, 4142271, 30551417, 232200615, 1766745035, 13518543301, 103511190946, 793366592691, 6084436180732, 46693188566604, 358610775107181, 2756060353163818, 21192914770286797, 163023210361243535
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=4
..0..0..0..0..0..1..1. .0..0..0..0..0..1..1. .0..0..1..1..1..2..0
..1..2..2..2..0..0..0. .2..1..1..2..2..0..1. .2..0..2..0..1..1..1
..1..1..1..1..2..2..0. .2..2..1..1..1..2..2. .2..1..2..2..0..0..1
..2..0..0..0..1..1..2. .1..0..2..0..0..1..2. .0..1..1..1..2..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|