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A203563
Number of nX7 0..2 arrays with row sums equal and column sums equal
0
3, 395, 35619, 7343451, 1509893003, 360255871643
(list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Column 7 of A203564
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for n=4
..0..1..2..0..1..1..2....0..2..1..1..1..0..2....0..2..0..1..2..0..2
..2..1..0..1..1..2..0....0..0..0..1..2..2..2....1..0..0..2..2..1..1
..0..1..2..2..1..0..1....2..1..2..1..0..1..0....1..2..2..1..0..1..0
..2..1..0..1..1..1..1....2..1..1..1..1..1..0....2..0..2..0..0..2..1
CROSSREFS
Sequence in context: A244670 A199146 A137023 * A181990 A198666 A377032
Adjacent sequences: A203560 A203561 A203562 * A203564 A203565 A203566
KEYWORD
nonn
AUTHOR
R. H. Hardin Jan 03 2012
STATUS
approved

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Last modified November 16 11:01 EST 2024. Contains 377791 sequences.
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