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A240517
Number of nX6 0..1 arrays with no element equal to exactly two horizontal and vertical neighbors, with new values 0..1 introduced in row major order
1
13, 42, 196, 1080, 6205, 37624, 231665, 1440880, 9082172, 57688194, 368247913, 2360899744, 15185317117, 97900171826, 632299574804, 4089240246144, 26472263944273, 171499150683304, 1111664911286921, 7208828328348392
OFFSET
1,1
COMMENTS
Column 6 of A240519
LINKS
EXAMPLE
Some solutions for n=4
..0..1..0..1..0..1....0..0..1..0..1..0....0..1..0..0..1..0....0..1..0..0..0..1
..1..0..1..0..0..0....1..1..1..0..1..1....0..1..1..1..1..1....1..0..1..0..1..0
..1..1..0..1..1..1....0..1..1..1..1..0....1..1..1..1..1..0....0..1..1..1..0..1
..1..0..1..0..1..0....1..1..1..1..1..1....0..0..1..0..1..0....1..0..1..0..0..0
CROSSREFS
Sequence in context: A243028 A242544 A301539 * A074022 A232448 A157835
KEYWORD
nonn
AUTHOR
R. H. Hardin, Apr 06 2014
STATUS
approved