A107688 A107686(n+1) - A107686(n).

1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 3, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 1, 1, 1, 2, 3, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 3, 1, 4, 3, 1, 1, 1, 2, 1, 1, 1, 1, 4, 3, 1, 1, 1, 2, 3, 1, 4, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 4, 1, 1, 1, 1, 1, 1, 2, 3, 1, 4, 1, 1

Offset: 0

Author

Reinhard Zumkeller, May 20 2005

Keywords

• nonn

Comments

a(n) <= 4.