|
|
A188448
|
|
T(n,k)=Number of (n*k)Xk binary arrays with nonzero rows in decreasing order, no more than 2 ones in any row and exactly n ones in every column
|
|
7
|
|
|
1, 2, 0, 4, 1, 0, 10, 4, 0, 0, 26, 18, 1, 0, 0, 76, 112, 10, 0, 0, 0, 232, 820, 112, 1, 0, 0, 0, 764, 6912, 1760, 26, 0, 0, 0, 0, 2620, 66178, 35150, 820, 1, 0, 0, 0, 0, 9496, 708256, 848932, 35150, 76, 0, 0, 0, 0, 0, 35696, 8372754, 24243520, 1944530, 6912, 1, 0, 0, 0, 0
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,2
|
|
COMMENTS
|
Table starts
.1.2.4.10..26...76...232.....764......2620........9496.........35696
.0.1.4.18.112..820..6912...66178....708256.....8372754.....108306280
.0.0.1.10.112.1760.35150..848932..24243520...805036704...30649435140
.0.0.0..1..26..820.35150.1944530.133948836.11234051976.1127512146540
.0.0.0..0...1...76..6912..848932.133948836.26615510712
.0.0.0..0...0....1...232...66178..24243520
.0.0.0..0...0....0.....1.....764
.0.0.0..0...0....0.....0
.0.0.0..0...0....0
.0.0.0..0...0
|
|
LINKS
|
|
|
EXAMPLE
|
All solutions for 9X3
..1..1..0
..1..0..1
..1..0..0
..0..1..1
..0..1..0
..0..0..1
..0..0..0
..0..0..0
..0..0..0
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|