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A097688 Number of ones in the first n terms of A097686. 1
1, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) = #{k: A097686(k)=1, 1<=k<=n}.

LINKS

Table of n, a(n) for n=1..93.

CROSSREFS

Sequence in context: A062537 A279596 A224458 * A262685 A171895 A025785

Adjacent sequences:  A097685 A097686 A097687 * A097689 A097690 A097691

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Aug 19 2004

STATUS

approved

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Last modified July 16 09:13 EDT 2020. Contains 335784 sequences. (Running on oeis4.)