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A185806
Number of (n+1)X9 0..3 arrays with every 2X2 subblock trace equal to some horizontal or vertical neighbor 2X2 subblock trace
0
85438016, 847003638592, 3849846787713472, 21422296324609759008, 114404199665472905793216
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OFFSET
1,1
COMMENTS
Column 8 of
A185807
LINKS
Table of n, a(n) for n=1..5.
EXAMPLE
Some solutions for 3X9
..0..0..0..0..3..2..0..3..0....0..0..0..0..1..0..0..0..1
..0..0..0..0..0..0..1..1..1....0..0..0..0..0..0..1..1..1
..0..0..0..0..0..0..1..0..3....0..0..0..0..0..0..0..3..3
CROSSREFS
Sequence in context:
A295465
A230794
A186922
*
A115534
A138030
A104964
Adjacent sequences:
A185803
A185804
A185805
*
A185807
A185808
A185809
KEYWORD
nonn
AUTHOR
R. H. Hardin
Feb 04 2011
STATUS
approved
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Last modified August 14 10:40 EDT 2024. Contains 375159 sequences. (Running on oeis4.)