1,2

A008472(n) <= a(n) <= A000203.

Table of n, a(n) for n=1..75.

a(24) = 2+3+8+12 = 25; A099042(24) = #{2,3,8,12} = 4;

a(25) = 5; A099042(25) = #{5} = 1;

a(26) = 2+13 = 15; A099042(26) = #{2,13} = 2.

Sequence in context: A153023 A068319 A133775 * A239327 A021047 A249492

Adjacent sequences: A099040 A099041 A099042 * A099044 A099045 A099046

nonn

Reinhard Zumkeller, Sep 23 2004

approved