|
| |
|
|
A204800
|
|
T(n,k)=Number of (n+1)X(k+1) 0..1 arrays with rows and columns of determinants of all 2X2 subblocks lexicographically nondecreasing
|
|
8
|
|
|
|
16, 47, 47, 125, 240, 125, 335, 1001, 1001, 335, 907, 4273, 6537, 4273, 907, 2470, 18550, 42214, 42214, 18550, 2470, 6740, 81009, 270148, 422426, 270148, 81009, 6740, 18406, 353975, 1729515, 4122638, 4122638, 1729515, 353975, 18406, 50278, 1547377
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
|
OFFSET
|
1,1
|
|
|
COMMENTS
|
Table starts
....16......47......125........335..........907...........2470............6740
....47.....240.....1001.......4273........18550..........81009..........353975
...125....1001.....6537......42214.......270148........1729515........11096511
...335....4273....42214.....422426......4122638.......40446826.......398104735
...907...18550...270148....4122638.....60519533......897624021.....13302221086
..2470...81009..1729515...40446826....897624021....20321241222....457771763592
..6740..353975.11096511..398104735..13302221086...457771763592..15605413576718
.18406.1547377.71369791.3932835872.197792658833.10349816580258.534307699718747
|
|
|
LINKS
|
R. H. Hardin, Table of n, a(n) for n = 1..219
|
|
|
EXAMPLE
|
Some solutions for n=4 k=3
..1..0..0..0....1..1..0..0....1..0..0..1....1..1..1..0....1..0..1..1
..1..0..1..1....1..0..0..0....0..0..0..1....0..0..0..0....0..0..0..0
..0..0..0..0....0..0..0..1....0..1..0..0....0..1..1..1....0..1..1..0
..0..1..1..0....0..1..0..0....0..0..0..0....0..0..0..0....0..0..0..0
..0..1..1..1....0..1..0..1....0..0..1..1....1..0..1..1....1..1..1..1
|
|
|
CROSSREFS
|
Column 1 is A204609
Sequence in context: A253231 A253350 A204616 * A194268 A292171 A204609
Adjacent sequences: A204797 A204798 A204799 * A204801 A204802 A204803
|
|
|
KEYWORD
|
nonn,tabl
|
|
|
AUTHOR
|
R. H. Hardin Jan 19 2012
|
|
|
STATUS
|
approved
|
| |
|
|
