1,1
Using the mean value in A092802 count composites <= mean below 10^n
At 10^1 there are 4 composites: 4+6+8+9=27. The rounded mean is 27\4=7. there are 2 composites under 7: 4 and 6, so a(1)=2.
Cf. A092802, A092853, A092854.
Sequence in context: A157055 A057407 A193127 * A139738 A025608 A141132
Adjacent sequences: A092849 A092850 A092851 * A092853 A092854 A092855
more,nonn
Enoch Haga (Enokh(AT)comcast.net), Mar 07 2004