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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
R. Belohlavek and V. Vychodil, Residuated Lattices of Size <= 12. Order 27, 147-161 (2010), Table 2.
CROSSREFS
Sequence in context: A150274 A109317 A109153 * A001861 A049526 A187251
KEYWORD
nonn,hard,nice
AUTHOR
Bernard De Baets (Bernard.DeBaets(AT)rug.ac.be)
STATUS
approved

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Last modified July 18 04:06 EDT 2024. Contains 374377 sequences. (Running on oeis4.)