
COMMENTS

We use N_b to denote "N read in base b". Similar to A121263, but now we write the numerals in the stack in binary:
......10....10.....10......10........etc.
..............11.....11......11..........
.......................100.....100.......
..................................101....
The next two terms have about 144 and 450 digits respectively.
A "dungeon" of numbers.


REFERENCES

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons, Problem 11286, Amer. Math. Monthly, 116 (2009) 466467.
David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated BaseChanging, in "The Mathematics of Preference, Choice and Order: Essays in Honor of Peter Fishburn", edited by Steven Brams, William V. Gehrlein and Fred S. Roberts, Springer, 2009, pp. 393402.
