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A205040 Number of (n+1)X3 0..6 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
7648, 100308, 366378, 5111024, 21682734, 271619224, 1279810940, 14597930612, 74840858802, 791226597424, 4346485274012, 43211363910100, 251242668738048, 2376185428641580, 14477914331199874, 131483891350527520 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A205046

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..210

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A252968 A252051 A038011 * A252406 A145307 A232254

Adjacent sequences:  A205037 A205038 A205039 * A205041 A205042 A205043

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 21 2012

STATUS

approved

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Last modified October 25 13:09 EDT 2021. Contains 348251 sequences. (Running on oeis4.)