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A234595 Number of elementary sequences of length n, where permutations of the components are taken into account. 6
1, 1, 4, 23, 256, 4647, 128262, 5128503 (list; graph; refs; listen; history; text; internal format)
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

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Last modified December 8 04:46 EST 2019. Contains 329853 sequences. (Running on oeis4.)