A146484 Decimal expansion of Product_{q in A014613} (1-1/(q*(q-1))).

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

Offset: 0

Author

R. J. Mathar, Feb 13 2009

Keywords

• nonn
• cons
• less

Comments

4-almost prime analog of A005596.

Examples

			0.989628867166427665504.. = (1-1/240)*(1-1/552)*...
		

Formula

The logarithm is -sum_{s>=2} sum_{j=1..floor[s/(1+r)]} binomial(s-r*j-1,j-1)*P_4(s)/j at r=1, where P_k(s) are the k-almost prime zeta functions of arXiv:0803.0900.