A234595 Number of elementary sequences of length n, where permutations of the components are taken into account.

1, 1, 4, 23, 256, 4647, 128262, 5128503

Offset

1,3

References

Fishburn, Peter C.; Roberts, Fred S., Uniqueness in finite measurement. Applications of combinatorics and graph theory to the biological and social sciences, 103--137, IMA Vol. Math. Appl., 17, Springer, New York, 1989. MR1009374 (90e:92099)

Links

Table of n, a(n) for n=1..8.

Fishburn, Peter C.; Roberts, Fred S., Uniqueness in finite measurement, in Applications of combinatorics and graph theory to the biological and social sciences, 103--137, IMA Vol. Math. Appl., 17, Springer, New York, 1989. MR1009374 (90e:92099). [Annotated scan of five pages only]

Crossrefs

Sequences in the Fishburn-Roberts (1989) article: A005269, A005268, A234595, A005272, A003513, A008926.

Sequence in context: A326501 A123637 A293510 * A327367 A303652 A130890

Adjacent sequences: A234592 A234593 A234594 * A234596 A234597 A234598

Keyword

nonn,more

Author

N. J. A. Sloane, Jan 04 2014

Status

approved