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A184375
1/3 the number of (n+1)X9 0..2 arrays with every 2X2 subblock having at least two equal elements connected horizontally or vertically
1
22064643, 90163722073, 360402692568245, 1444622701339019869, 5788675585887326994869, 23196517518911246631354055, 92953139774330929595592449437, 372482322079037724494019844619359
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OFFSET
1,1
COMMENTS
Column 8 of
A184376
LINKS
R. H. Hardin,
Table of n, a(n) for n = 1..25
EXAMPLE
Some solutions for 3X9 with a(1,1)=0
..0..0..0..0..0..1..2..2..2....0..0..0..0..0..0..0..0..2
..0..0..0..0..0..0..2..2..2....0..0..0..0..0..2..1..0..1
..0..0..0..0..0..1..2..2..0....0..0..0..0..0..1..1..0..2
CROSSREFS
Sequence in context:
A118860
A186595
A210076
*
A183799
A205096
A183969
Adjacent sequences:
A184372
A184373
A184374
*
A184376
A184377
A184378
KEYWORD
nonn
AUTHOR
R. H. Hardin
Jan 12 2011
STATUS
approved
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Last modified June 7 12:16 EDT 2024. Contains 373173 sequences. (Running on oeis4.)