|
|
A034328
|
|
Triangle read by rows: T(n,k) = number of loopless, regular k X n-matrix matroids of dimension k (or n-matroids of rank k).
|
|
8
|
|
|
1, 1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 4, 6, 4, 1, 1, 6, 12, 11, 5, 1, 1, 7, 20, 26, 17, 6, 1, 1, 9, 33, 58, 52, 25, 7, 1, 1, 11, 52, 121, 146, 95, 35, 8, 1, 1, 13, 78, 240, 388, 334, 162, 47, 9, 1, 1, 15, 113, 454, 975, 1123, 710, 262, 61, 10, 1, 1, 18, 163, 835, 2365
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
0,5
|
|
REFERENCES
|
Computed by Harald Fripertinger (fripert(AT)kfunigraz.ac.at).
|
|
LINKS
|
|
|
EXAMPLE
|
1; 1,1; 1,2,1; 1,3,3,1; 1,4,6,4,1; 1,6,12,11,5,1; 1,7,20,26,17,6,1; ...
|
|
CROSSREFS
|
|
|
KEYWORD
|
|
|
AUTHOR
|
|
|
EXTENSIONS
|
Description corrected by Harald Fripertinger, Nov 14 2007
|
|
STATUS
|
approved
|
|
|
|