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A222982 Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
4, 25, 314, 4572, 68385, 1037326, 15904038, 245900395, 3827698634, 59908716776, 941887270541, 14864346253334, 235333007557546, 3736059988845399, 59453991638435810, 948103358514285732, 15147172497271220257 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 4 of A222986

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..205

EXAMPLE

Some solutions for n=3

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

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

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

CROSSREFS

Sequence in context: A058791 A216660 A238510 * A259591 A093959 A308476

Adjacent sequences:  A222979 A222980 A222981 * A222983 A222984 A222985

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2013

STATUS

approved

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Last modified January 27 08:31 EST 2020. Contains 331293 sequences. (Running on oeis4.)