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.
1, 1, 2, 6, 22, 94, 451, 2386, 13775, 86417, 590489, 4446029, 37869449, 382549464
Offset: 1
Links
- R. Belohlavek and V. Vychodil, Residuated Lattices of Size <= 12. Order 27, 147-161 (2010), Table 2.
- R. Belohlavek, V. Vychodil, Residuated lattices of size <= 12, Extended version
- Index entries for sequences related to monoids