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A210069
1/4 the number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having one or three distinct clockwise edge differences
0
33, 7653, 11333893, 114628150378, 7804233177145593, 3585439186083048636774, 11099179467499737412764448230, 231524919565338418309736640383814198
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Diagonal of A210077
LINKS
Table of n, a(n) for n=1..8.
EXAMPLE
Some solutions for n=4
..2..3..1..1..2....2..0..1..2..1....2..1..1..2..1....1..1..3..2..3
..1..1..1..1..3....0..0..1..3..3....1..1..2..2..3....0..1..1..1..1
..2..3..1..1..1....2..0..2..2..1....0..0..2..1..1....2..1..2..3..1
..1..1..1..2..2....1..0..1..1..1....0..2..2..0..1....1..1..1..1..1
..3..1..3..3..1....2..2..1..0..0....0..2..2..1..1....0..2..0..0..0
CROSSREFS
Sequence in context: A183551 A114071 A330134 * A316777 A057981 A219563
Adjacent sequences: A210066 A210067 A210068 * A210070 A210071 A210072
KEYWORD
nonn
AUTHOR
R. H. Hardin Mar 17 2012
STATUS
approved

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Last modified November 7 09:19 EST 2024. Contains 377527 sequences.
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