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A226844
Number of n X n (0,1,2) arrays of permanents of 2X2 subblocks of some (n+1)X(n+1) binary array
0
3, 71, 4722, 989731, 838184554, 2776144667878, 34196613228139182
OFFSET
1,1
COMMENTS
Diagonal of A226852
EXAMPLE
Some solutions for n=3
..0..0..1....0..1..2....0..2..0....0..0..2....1..0..1....1..1..1....1..1..0
..2..2..2....2..2..2....1..2..0....0..0..1....1..2..2....0..1..1....1..1..0
..0..0..1....2..2..2....1..0..1....0..1..1....0..0..0....0..0..1....1..1..2
CROSSREFS
Sequence in context: A349072 A272657 A226709 * A300540 A334124 A336441
KEYWORD
nonn
AUTHOR
R. H. Hardin Jun 19 2013
STATUS
approved