2,1

The next term is too large to include.

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons, Problem 11286, Amer. Math. Monthly, 116 (2009) 466-467.

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, 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. 393-402.

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing (arXiv:math.NT/0611293).

a(4) = 2^(3^4)) = 2417851639229258349412352.

Cf. A014221, A049384, A121263, A121265, A121295, A121296.

Sequence in context: A012672 A024340 A012667 this_sequence A019315 A127558 A011063

Adjacent sequences: A124072 A124073 A124074 this_sequence A124076 A124077 A124078

nonn,bref

David Applegate (david(AT)research.att.com) and N. J. A. Sloane (njas(AT)research.att.com), Nov 08 2006