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A183741 Number of (n+1) X 3 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4. 1
147, 2553, 55857, 1389521, 33587307, 829488619, 20777533329, 526362000253, 13427566678795, 344521962594233, 8881010153820905, 229838062571779167, 5967837405163476141, 155396432549860039531, 4056271778433576967047 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A183748.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..200

EXAMPLE

Some solutions for 5 X 3:

..0..0..1....0..0..1....0..0..0....0..0..0....0..0..0....0..0..1....0..0..0

..0..1..1....1..0..2....1..0..2....2..0..0....0..0..0....1..2..1....1..0..2

..0..2..2....1..0..2....2..2..0....0..2..2....2..2..1....0..2..2....2..1..0

..1..2..0....1..2..2....2..2..0....2..2..0....1..2..0....2..0..0....2..1..2

..1..0..2....1..1..1....2..0..1....1..0..1....0..2..0....0..2..0....2..1..1

...

...M..M.......M..M.......M..M.......M..M.......M..M.......M..E.......M..M...

...M..P.......M..E.......P..E.......E..E.......E..M.......P..P.......E..M...

...P..P.......E..P.......P..E.......P..P.......P..P.......E..E.......P..E...

...E..E.......P..P.......P..M.......P..M.......P..E.......E..M.......P..P...

CROSSREFS

Sequence in context: A063701 A261939 A251107 * A020328 A075925 A097729

Adjacent sequences:  A183738 A183739 A183740 * A183742 A183743 A183744

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2011

STATUS

approved

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Last modified August 15 13:27 EDT 2020. Contains 336504 sequences. (Running on oeis4.)