OFFSET
1,1
COMMENTS
These are the exponents on 11 in numbers of the form (2^r)*(11^s) in the main sequence.
EXAMPLE
A217413(1) = (2^71) * (11^5), so this sequence's first term is 5.
CROSSREFS
KEYWORD
nonn,base,less
AUTHOR
James G. Merickel, Oct 02 2012
STATUS
approved