|
|
A234440
|
|
Number of (n+1) X (5+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).
|
|
1
|
|
|
6272, 66228, 666880, 7165920, 72539432, 790261148, 8028682984, 88710949848, 904037477472, 10133236760728, 103526333639528, 1177176079902156, 12050136543826616, 138970750405944768, 1424578896164786720
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
LINKS
|
|
|
EXAMPLE
|
Some solutions for n=2:
2 1 2 1 1 1 1 1 1 0 0 0 1 2 2 1 2 2 2 1 0 0 2 0
2 2 2 2 1 2 0 1 0 0 1 2 0 0 1 1 1 0 1 1 1 0 1 0
1 2 1 2 0 0 1 1 1 0 0 2 1 0 0 1 2 2 2 1 0 0 2 2
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|