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1,1
Column 7 of A183483
Table of n, a(n) for n=1..7.
Some solutions for 4X7
..0..0..0..1..1..0..2....0..0..0..0..2..1..0....0..0..1..0..2..2..0
..0..0..0..1..0..0..2....0..0..0..0..2..1..0....0..0..1..0..0..0..0
..0..1..0..0..2..0..0....0..0..0..0..0..0..0....0..0..0..0..1..0..0
..0..1..0..2..2..0..0....0..0..0..0..0..2..2....0..1..1..0..1..0..0
Sequence in context: A153166 A153168 A195215 * A295415 A202801 A226307
Adjacent sequences: A183478 A183479 A183480 * A183482 A183483 A183484
nonn
R. H. Hardin Jan 05 2011
approved