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 A007337 Signature sequence of sqrt(3). (Formerly M0144) 9
 1, 2, 1, 3, 2, 4, 1, 3, 5, 2, 4, 6, 1, 3, 5, 7, 2, 4, 6, 1, 8, 3, 5, 7, 2, 9, 4, 6, 1, 8, 3, 10, 5, 7, 2, 9, 4, 11, 6, 1, 8, 3, 10, 5, 12, 7, 2, 9, 4, 11, 6, 13, 1, 8, 3, 10, 5, 12, 7, 14, 2, 9, 4, 11, 6, 13, 1, 8, 15, 3, 10, 5, 12, 7, 14, 2, 9, 16, 4, 11, 6, 13, 1, 8, 15, 3, 10, 17, 5, 12, 7, 14, 2, 9 (list; graph; refs; listen; history; text; internal format)
 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 p 157 1997. 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 First occurrence of n is given in A022778. Sequence in context: A158456 A084531 A023129 * A167430 A056892 A136523 Adjacent sequences:  A007334 A007335 A007336 * A007338 A007339 A007340 KEYWORD nonn AUTHOR EXTENSIONS More terms from Robert G. Wilson v, Jul 24 2004 STATUS approved

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Last modified December 12 03:27 EST 2018. Contains 318052 sequences. (Running on oeis4.)