OFFSET
1,1
COMMENTS
A308803(2n+1) >= (2*10^n-1)(5*10^n+1) for all n. This sequence lists the values of n where this lower bound is attained.
CROSSREFS
KEYWORD
nonn,base,more
AUTHOR
Chai Wah Wu, Sep 30 2019
EXTENSIONS
a(14)-a(34) from Chai Wah Wu, Oct 03 2019
STATUS
approved