A097688 Number of ones in the first n terms of A097686.

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

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