A167618 Convolution of A010054 with A052343.

1, 2, 2, 3, 3, 2, 4, 5, 2, 4, 5, 3, 6, 5, 3, 4, 8, 5, 4, 6, 2, 9, 8, 4, 6, 6, 5, 7, 8, 3, 8, 11, 6, 4, 8, 5, 7, 12, 5, 9, 7, 5, 10, 8, 6, 8, 12, 5, 9, 12, 3, 10, 14, 3, 6, 8, 10, 14, 11, 8, 6, 14, 5, 7, 9, 8, 15, 14, 5, 6, 14, 8, 13, 11, 6, 9, 15, 8, 8, 15, 5, 12, 17, 6, 15, 8, 8, 16, 9, 6, 7, 19, 8, 15

Offset: 0

Author

Reinhard Zumkeller, Nov 07 2009

Keywords

• nonn

Comments

a(n) = SUM(A010054(k)*A052343(n-k): 0<=k<=n);

A002636(n) <= a(n).