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A204756 Number of (n+1)X2 0..5 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
1175, 3677, 11081, 38789, 131613, 469999, 1652217, 5928687, 21125147, 75994701, 272583363, 982624719, 3538616555, 12780460757, 46152949595, 166980292941, 604289827009, 2189737689861, 7938299557587, 28806261483751, 104582844671167 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 1 of A204763

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A269958 A033912 A204763 * A027485 A204755 A202199

Adjacent sequences:  A204753 A204754 A204755 * A204757 A204758 A204759

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 18 2012

STATUS

approved

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Last modified August 4 05:02 EDT 2021. Contains 346442 sequences. (Running on oeis4.)