A100699 Number of ways to partition n into two squarefree numbers that are not prime.

0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 1, 1, 0, 0, 1, 2, 0, 0, 0, 2, 1, 1, 1, 1, 1, 0, 2, 2, 1, 1, 2, 2, 0, 1, 2, 5, 1, 0, 2, 4, 2, 1, 3, 4, 3, 0, 3, 5, 3, 1, 1, 6, 2, 2, 2, 6, 3, 1, 3, 5, 5, 0, 4, 4, 4, 3, 4, 7, 3, 3, 4, 9, 4, 1, 4, 7, 5, 3, 6, 7, 5, 0, 5, 9, 4, 3, 5, 9, 3, 4, 7, 11, 5, 2, 7, 9, 7, 2, 8, 10, 7, 3, 8, 10

Offset: 1

Author

Reinhard Zumkeller, Dec 09 2004

Keywords

• nonn

Comments

a(n) <= A071068(n).

Examples

			a(36) = #{1+35, 6+30, 10+26, 14+22, 15+21} = 5.
		

Crossrefs

Cf. A000469, A061358, A005117.