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A227024 Number of nX5 (0,1,2) arrays of permanents of 2X2 subblocks of some (n+1)X6 binary array with rows and columns of the latter in lexicographically nondecreasing order 1
25, 368, 4948, 65317, 786154, 8379285, 79224749, 668706345, 5081503151, 35102679286, 222533536879, 1305789511714, 7145426639248, 36700964912428, 177929765359899, 818153315837912, 3583007628524884, 14999102522624015 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A227025

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..29

EXAMPLE

Some solutions for n=4

..0..0..0..1..0....0..0..0..0..0....0..1..0..0..1....0..0..0..0..1

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

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

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

CROSSREFS

Sequence in context: A045622 A130052 A059255 * A254376 A022749 A036071

Adjacent sequences:  A227021 A227022 A227023 * A227025 A227026 A227027

KEYWORD

nonn

AUTHOR

R. H. Hardin Jun 27 2013

STATUS

approved

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Last modified August 8 02:45 EDT 2020. Contains 336290 sequences. (Running on oeis4.)