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A204837 Number of (n+1)X6 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero 1
2048, 21380, 157872, 1438706, 11643054, 102186340, 852866652, 7401341360, 62559638330, 541098230290, 4603000012148, 39777249760844, 339717186256760, 2935286205895216, 25139048468622558, 217230974640825190 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A204840

LINKS

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

EXAMPLE

Some solutions for n=4

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

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

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

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

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

CROSSREFS

Sequence in context: A220584 A195069 A135290 * A100629 A195659 A017686

Adjacent sequences:  A204834 A204835 A204836 * A204838 A204839 A204840

KEYWORD

nonn

AUTHOR

R. H. Hardin Jan 19 2012

STATUS

approved

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Last modified April 24 05:09 EDT 2014. Contains 240953 sequences.