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A222796 Number of 3Xn 0..3 arrays with exactly floor(3Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order 1
0, 8, 34, 275, 888, 14292, 62072, 1144030, 5213239, 98670352, 454254970, 8668405392, 40062023836, 768672153916, 3564115006844, 68657814382115, 319237701630821, 6169004369711478, 28754090389217238, 557059581178953846 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Row 3 of A222794

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..58

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A252934 A229398 A223015 * A203445 A318244 A280395

Adjacent sequences:  A222793 A222794 A222795 * A222797 A222798 A222799

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 05 2013

STATUS

approved

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Last modified May 25 16:40 EDT 2020. Contains 334595 sequences. (Running on oeis4.)