0,3

a(n) = #{k: A008963(k) = 1 and 0<=k<=n};

a(A105501(n)) = a(A105501(n) - 1) + 1;

n = a(n) + A105512(n) + A105513(n) + A105514(n) + A105515(n) + A105516(n) + A105517(n) + A105518(n) + A105519(n).

Table of n, a(n) for n=0..79.

Cf. A000030, A000045, A105501.

Sequence in context: A075249 A008648 A154099 * A187183 A027868 A060384

Adjacent sequences: A105508 A105509 A105510 * A105512 A105513 A105514

nonn,base

Reinhard Zumkeller, Apr 11 2005

approved