OFFSET
0,2
COMMENTS
Number of terms of A067030 below 10^n.
a(16)-a(18) are based on two empirically detected recursive formulas. [Lars Blomberg, Nov 25 2011]
LINKS
EXAMPLE
a(1) = 5 since 0, 2, 4, 6, 8 are the terms of A067030 which are smaller than 10^1.
CROSSREFS
KEYWORD
nonn,base
AUTHOR
Klaus Brockhaus, Sep 22 2003
EXTENSIONS
a(9)-a(10) from Donovan Johnson, Sep 22 2009
a(11)-a(18) from Lars Blomberg, Dec 19 2011
a(19)-a(24) from Hiroaki Yamanouchi, Sep 04 2014
STATUS
approved