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A007158 Essentially n-ary operations in a certain 3-element algebra.
(Formerly M1995)
+0
1
2, 10, 3866, 297538923922, 675089708540070294583609203589639922 (list; graph; listen)
OFFSET

0,1

REFERENCES

J. Berman, ``Free spectra of 3-element algebras,'' in R. S. Freese and O. C. Garcia, editors, Universal Algebra and Lattice Theory (Puebla, 1982), Lect. Notes Math. Vol. 1004, 1983.

CROSSREFS

Adjacent sequences: A007155 A007156 A007157 this_sequence A007159 A007160 A007161

Sequence in context: A057015 A059732 A000884 this_sequence A080485 A125149 A079180

KEYWORD

nonn

AUTHOR

njas

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Last modified October 7 08:31 EDT 2008. Contains 144667 sequences.


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