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A204874 Number of (n+1)X7 0..3 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
36285, 1174669, 11644559, 320519921, 3677014705, 94493071327, 1170722541163, 28674816027923, 375190755400931, 8831187451636669, 120712083104557267, 2744638222500107219, 38929895065086949097, 858589315995824785575 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 6 of A204876

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A138556 A236298 A249083 * A234858 A234856 A222952

Adjacent sequences:  A204871 A204872 A204873 * A204875 A204876 A204877

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 20 2012

STATUS

approved

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Last modified July 2 18:27 EDT 2022. Contains 355029 sequences. (Running on oeis4.)