OFFSET
1,2
LINKS
Robert Israel, Table of n, a(n) for n = 1..99
FORMULA
a(n) = 13^A180694(n). - Michel Marcus, Jan 18 2016
MAPLE
count:= 1:
A[1]:= 1:
for n from 1 while count < 99 do
x:= 13^n;
m:= ilog10(x);
for d from 0 to 1 do
y:= floor(x/10^(m-d));
if not assigned(A[y]) then
count:= count+1;
A[y]:= x;
fi
od
od:
seq(A[i], i=1..99); # Robert Israel, Jan 17 2016
CROSSREFS
KEYWORD
base,nonn
AUTHOR
Daniel Mondot, Sep 18 2010
STATUS
approved