%I
%S 1,1,4,23,256,4647,128262,5128503
%N Number of elementary sequences of length n, where permutations of the components are taken into account.
%D Fishburn, Peter C.; Roberts, Fred S., Uniqueness in finite measurement. Applications of combinatorics and graph theory to the biological and social sciences, 103137, IMA Vol. Math. Appl., 17, Springer, New York, 1989. MR1009374 (90e:92099)
%H Fishburn, Peter C.; Roberts, Fred S., <a href="/A005269/a005269.pdf">Uniqueness in finite measurement</a>, in Applications of combinatorics and graph theory to the biological and social sciences, 103137, IMA Vol. Math. Appl., 17, Springer, New York, 1989. MR1009374 (90e:92099). [Annotated scan of five pages only]
%Y Sequences in the FishburnRoberts (1989) article: A005269, A005268, A234595, A005272, A003513, A008926.
%K nonn,more
%O 1,3
%A _N. J. A. Sloane_, Jan 04 2014
