OFFSET
1,2
COMMENTS
Arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x.
REFERENCES
C. Kimberling, "Fractal Sequences and Interspersions", Ars Combinatoria, vol. 45, 1997, p. 157.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).
LINKS
T. D. Noe, Table of n, a(n) for n = 1..1000
C. Kimberling, Interspersions
MATHEMATICA
Take[ Transpose[ Sort[ Flatten[ Table[{i + j*Sqrt[3], i}, {i, 25}, {j, 17}], 1], #1[[1]] < #2[[1]] &]][[2]], 95] (* Robert G. Wilson v, Jul 24 2004 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
EXTENSIONS
More terms from Robert G. Wilson v, Jul 24 2004
STATUS
approved