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A223014 Number of 3Xn 0..1 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..1 order 1
4, 10, 24, 117, 284, 1673, 4429, 26552, 72934, 442065, 1235006, 7532763, 21256771, 130255369, 370176224, 2276294040, 6503070384, 40098304454, 115024311048, 710794645074, 2045650165772, 12663624563666, 36543679573017 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 3 of A223012

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..48

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A291412 A001868 A217696 * A038783 A127070 A107961

Adjacent sequences:  A223011 A223012 A223013 * A223015 A223016 A223017

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2013

STATUS

approved

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Last modified June 4 10:04 EDT 2020. Contains 334825 sequences. (Running on oeis4.)