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A183770 1/32 the number of (2n+1) X 8 binary arrays with equal numbers of 2 X 2 subblocks with sum mod two being 0 and 1. 1
109824, 5134924800, 275588031713280, 15664518350357381120, 919029987874102029778944, 55014538812191247245224181760, 3339401594009138875954682737459200 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A183772(2n).

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..24

EXAMPLE

Some solutions for 3 X 8:

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

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

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

CROSSREFS

Sequence in context: A234700 A238061 A111888 * A023349 A138722 A122240

Adjacent sequences:  A183767 A183768 A183769 * A183771 A183772 A183773

KEYWORD

nonn

AUTHOR

R. H. Hardin, Jan 06 2011

STATUS

approved

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Last modified April 21 22:12 EDT 2019. Contains 322328 sequences. (Running on oeis4.)