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A130890
Number of terms of A061681 having length = n in decimal representation.
1
4, 23, 281, 2825, 28287, 282890, 2828964, 28289682, 282896825
OFFSET
1,1
COMMENTS
A055642(a(n)) = n; a(n) / A130901(n) --> 1.
EXAMPLE
a(1)=#{1,2,4,8}=4;
a(2)=#{16,17,18,19,20,22,24,26,28,30,33,36,39,42,46,50,55,60,66,72,79,86,94}=23.
CROSSREFS
Sequence in context: A234595 A327367 A303652 * A219932 A266919 A219464
KEYWORD
nonn,base,more
AUTHOR
Reinhard Zumkeller, Jun 08 2007
STATUS
approved