A261994 - OEIS

A261994

Number of complemented lattices on n nodes.

1, 1, 1, 0, 1, 2, 6, 18, 71, 307, 1594, 9446, 63461

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OFFSET

0,6

REFERENCES

R. Belohlavek, V. Vychodil, Residual lattices of size <=12, Order 27 (2010) 147-161 doi:10.1007/s11083-010-9143-7, Table 6

LINKS

PROG

(Sage)

for n in range(7):

print(len([L for L in Posets(n) if L.is_lattice() and LatticePoset(L).is_complemented()]))

CROSSREFS

KEYWORD

nonn,more

AUTHOR

STATUS

approved