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A204832
Number of (n+1)X(n+1) 0..2 arrays with the permanents of all 2X2 subblocks equal and nonzero
0
56, 524, 7070, 247108, 11643054, 1289881302, 204749436552, 73036201343336, 38899944310300258, 45302488265102707276, 80802524916380070655310
OFFSET
1,1
COMMENTS
Diagonal of A204840
EXAMPLE
Some solutions for n=4
..1..0..1..2..1....0..2..1..2..1....2..2..2..1..0....2..1..0..1..2
..2..2..0..2..0....1..2..0..2..0....0..1..0..1..2....1..0..1..0..1
..0..1..1..1..1....0..2..1..2..1....2..0..2..0..2....1..1..2..1..0
..2..2..0..2..0....1..2..0..2..0....1..1..1..1..0....1..0..1..0..1
..1..0..1..1..1....1..0..1..2..1....1..1..1..1..2....1..1..2..1..2
CROSSREFS
Sequence in context: A219832 A219576 A219943 * A190536 A190070 A220930
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 19 2012
STATUS
approved