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A222675 Number of nX4 0..3 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..3 order 1
4, 10, 58, 527, 8276, 133028, 2363628, 40206464, 727306856, 12525102179, 225526086320, 3916711645116, 70238669794180, 1227292294581568, 21942415435228510, 385251466640023275, 6872913615981792520 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A222679

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..87

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A104363 A092190 A328036 * A328155 A209030 A220824

Adjacent sequences:  A222672 A222673 A222674 * A222676 A222677 A222678

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 28 2013

STATUS

approved

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Last modified October 19 16:25 EDT 2021. Contains 348091 sequences. (Running on oeis4.)