A115854 Difference between number of semiprimes <= 10^n and the asymptotic approximation round(10^n*loglog(10^n)/log(10^n)).

0, 0, 0, 19, 214, 2154, 19974, 179590, 1610937, 14515403, 131560754, 1199914216, 11009605949, 101581094033, 942018562525

Offset

0,4

Links

Table of n, a(n) for n=0..14.

Example

a(5) = A036352(5) - round(...10^5...) = 23378 - 21224 = 2154.

Crossrefs

Cf. A001358, A036352, A066265, A072000.

Sequence in context: A201791 A099663 A202665 * A220978 A367980 A009474

Adjacent sequences: A115851 A115852 A115853 * A115855 A115856 A115857

Keyword

nonn

Author

Jonathan Vos Post, Mar 14 2006

Extensions

Edited by Don Reble, Mar 29 2006

Status

approved