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A222989 Number of 4Xn 0..2 arrays with no more than floor(4Xn/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..2 order 1
14, 70, 584, 4572, 42607, 414907, 4405097, 48718472, 555780434, 6416259672, 74903319364, 877918502428, 10342543515649, 122102452706949, 1445864757738121, 17149126185134333, 203824031565924979 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Row 4 of A222986

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..52

EXAMPLE

Some solutions for n=3

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

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

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

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

CROSSREFS

Sequence in context: A034554 A246507 A034562 * A245950 A041372 A245951

Adjacent sequences:  A222986 A222987 A222988 * A222990 A222991 A222992

KEYWORD

nonn

AUTHOR

R. H. Hardin Mar 11 2013

STATUS

approved

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Last modified May 22 13:58 EDT 2022. Contains 353950 sequences. (Running on oeis4.)