login
A203974
Number of nX7 0..2 arrays with every 1 immediately preceded by 0 to the left or above, and every 2 immediately preceded by 0 1 to the left or above
2
44, 5569, 1107082, 180623180, 30104480870, 5061444598545, 847220834970347, 141937054743243405, 23779975312437117115, 3983658769957290205062, 667379066179974381638813, 111804522576410924713391638
OFFSET
1,1
COMMENTS
Column 7 of A203975
LINKS
EXAMPLE
Some solutions for n=2
..0..1..0..0..0..1..0....0..0..0..1..0..0..0....0..1..0..1..2..0..0
..0..1..2..1..1..0..1....0..0..0..0..1..2..0....0..1..2..0..0..1..0
CROSSREFS
Sequence in context: A332562 A078279 A268548 * A266853 A323315 A007105
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 08 2012
STATUS
approved