OFFSET
1,2
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
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved