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A183742 Number of (n+1) X 4 0..2 arrays with equal numbers of 2 X 2 subblocks with sum over 4 and with sum under 4. 1
1041, 55857, 3631179, 263234281, 19216153673, 1426003404195, 107098914678533, 8126407481779133, 621298001439642413, 47785646470869878477, 3693151367056391264855, 286578277345141339371139 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A183748.

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..116

EXAMPLE

Some solutions for 3 X 4:

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

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

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

...

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

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

CROSSREFS

Sequence in context: A210259 A233854 A168412 * A252618 A231112 A213811

Adjacent sequences:  A183739 A183740 A183741 * A183743 A183744 A183745

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2011

STATUS

approved

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Last modified May 6 17:59 EDT 2021. Contains 343586 sequences. (Running on oeis4.)