|
|
A030453
|
|
Number of linearly ordered Abelian monoids of size n (semi-groups with greatest element of the corresponding chain as neutral element); triangular norms on an n-chain.
|
|
4
|
|
|
1, 1, 2, 6, 22, 94, 451, 2386, 13775, 86417, 590489, 4446029, 37869449, 382549464
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,3
|
|
LINKS
|
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,hard,nice
|
|
AUTHOR
|
Bernard De Baets (Bernard.DeBaets(AT)rug.ac.be)
|
|
STATUS
|
approved
|
|
|
|