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A205196 Number of (n+1)X4 0..3 arrays with rows and columns of permanents of all 2X2 subblocks lexicographically nondecreasing, and all 2X2 permanents nonzero 1
13366, 1256641, 121990159, 8736632044, 574289759868, 30273558353295, 1465496326952443, 61370496069229820, 2389662741082255367, 84128021859080348159, 2784672079756420101754, 85572965154250321625295 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A205198

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A176465 A185503 A333014 * A235297 A252240 A220060

Adjacent sequences:  A205193 A205194 A205195 * A205197 A205198 A205199

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 23 2012

STATUS

approved

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Last modified August 12 07:45 EDT 2022. Contains 356067 sequences. (Running on oeis4.)