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A187438
Number of (n+1)X7 0..2 arrays with no 2X2 subblock commuting with any of its horizontal and vertical 2X2 subblock neighbors
0
3022484, 3319295436, 3677337022406, 4086873166309438, 4538075433355553643
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OFFSET
1,1
COMMENTS
Column 6 of
A187441
LINKS
Table of n, a(n) for n=1..5.
EXAMPLE
Some solutions for 3X7
..0..0..0..0..0..1..0....0..0..0..1..1..0..1....0..0..0..0..1..2..2
..0..1..0..1..2..2..0....0..1..0..1..1..0..2....0..1..0..1..2..1..0
..0..0..0..2..1..1..0....0..0..0..0..2..2..0....0..0..0..2..2..0..0
CROSSREFS
Sequence in context:
A224077
A114065
A268405
*
A184374
A205932
A281447
Adjacent sequences:
A187435
A187436
A187437
*
A187439
A187440
A187441
KEYWORD
nonn
AUTHOR
R. H. Hardin
Mar 10 2011
STATUS
approved
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Last modified August 18 17:29 EDT 2024. Contains 375269 sequences. (Running on oeis4.)