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A222611 Number of nX3 0..3 arrays with no more than floor(nX3/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..3 order 1
1, 3, 5, 65, 181, 3545, 11421, 243955, 829319, 17592855, 61952605, 1284213397, 4662579053, 94370045311, 351914237859, 6970771357553, 26611889407629, 517258600443449, 2015559262618275, 38540189430369807, 152866542948213595 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Column 3 of A222616

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..204

EXAMPLE

All solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A319584 A318546 A076513 * A261071 A247862 A145616

Adjacent sequences:  A222608 A222609 A222610 * A222612 A222613 A222614

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 26 2013

STATUS

approved

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Last modified September 26 09:15 EDT 2021. Contains 347664 sequences. (Running on oeis4.)