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A023115
Signature sequence of 1/sqrt(2) (arrange the numbers i+j*x (i,j >= 1) in increasing order; the sequence of i's is the signature of x).
3
1, 1, 2, 1, 2, 3, 1, 2, 3, 1, 4, 2, 3, 1, 4, 2, 5, 3, 1, 4, 2, 5, 3, 1, 6, 4, 2, 5, 3, 1, 6, 4, 2, 7, 5, 3, 1, 6, 4, 2, 7, 5, 3, 8, 1, 6, 4, 2, 7, 5, 3, 8, 1, 6, 4, 9, 2, 7, 5, 3, 8, 1, 6, 4, 9, 2, 7, 5, 10, 3, 8, 1, 6, 4, 9, 2, 7, 5, 10, 3, 8, 1, 6, 11, 4, 9, 2, 7, 5, 10, 3, 8
OFFSET
1,3
REFERENCES
C. Kimberling, "Fractal Sequences and Interspersions", Ars Combinatoria, vol. 45 p 157 1997.
CROSSREFS
Cf. A010503.
Sequence in context: A272907 A128117 A373212 * A194436 A061336 A057945
KEYWORD
nonn
STATUS
approved