User blog comment:Deedlit11/Bignum Bakeoff appetizer/@comment-5529393-20140916042352/@comment-10429372-20140916155049

i = 9 ** 9 ** 9 b = 2 def B(n): j = 0 while b**j <= n/b: j += 1 return (b+1)**B(j) + B(n - b**j) if n else 0 while i: 	i = B(i) - 1 b += 1 print b 102 characters.