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A205044 Number of (n+1)X7 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero 0
1451748, 271619224, 2700120030, 585016930830, 6109962465816, 1394914737725462, 15032648681652406 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A205046

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

Some solutions for n=4

..1..3..3..4..5..4..3....3..5..2..2..2..5..4....2..5..2..1..0..1..5

..5..3..3..2..2..2..3....2..0..2..3..2..0..2....0..1..0..1..2..0..2

..1..3..3..4..5..4..3....3..5..0..5..0..5..6....2..6..2..1..0..1..4

..5..3..3..2..2..2..3....2..0..2..1..2..0..2....0..1..0..1..2..0..2

..1..3..3..4..5..4..3....1..5..4..3..4..5..0....2..0..2..0..2..1..0

CROSSREFS

Sequence in context: A184789 A003939 A003932 * A237314 A263071 A204801

Adjacent sequences:  A205041 A205042 A205043 * A205045 A205046 A205047

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 21 2012

STATUS

approved

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Last modified October 24 20:35 EDT 2021. Contains 348233 sequences. (Running on oeis4.)