A023128 - OEIS

A023128

Signature sequence of 1/sqrt(6) (arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x).

1, 1, 1, 2, 1, 2, 1, 2, 3, 1, 2, 3, 1, 2, 3, 1, 4, 2, 3, 1, 4, 2, 3, 1, 4, 2, 5, 3, 1, 4, 2, 5, 3, 1, 4, 2, 5, 3, 1, 6, 4, 2, 5, 3, 1, 6, 4, 2, 5, 3, 1, 6, 4, 2, 7, 5, 3, 1, 6, 4, 2, 7, 5, 3, 1, 6, 4, 2, 7, 5, 3, 1, 8, 6, 4, 2, 7, 5, 3, 1, 8, 6, 4, 2, 7, 5, 3, 1

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,4

REFERENCES

C. Kimberling, "Fractal Sequences and Interspersions", Ars Combinatoria, vol. 45 p 157 1997.

LINKS

T. D. Noe, Table of n, a(n) for n=1..1000

C. Kimberling, Interspersions

Index entries for sequences related to signature sequences

CROSSREFS

Sequence in context: A220694 A136314 A121997 * A237260 A249727 A023118

Adjacent sequences: A023125 A023126 A023127 * A023129 A023130 A023131

KEYWORD

nonn

AUTHOR

Clark Kimberling

STATUS

approved