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A131012 a(n) = A121295(n) - A121265(n). 1
0, 0, 0, 0, 0, -2, -3, -3, 1, -72, 3303, 10788, 287767, -2441508, 41165366097, 1073195273432754, 155912367904160034530, 3136560083478359027185613587, 539970867097445764756784886568605205005, -6513790584274345956893756600832505179138091590508595552 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

We conjecture that from some point on, all terms are >= 0.

REFERENCES

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.

LINKS

Table of n, a(n) for n=0..19.

David Applegate, Marc LeBrun and N. J. A. Sloane, Descending Dungeons and Iterated Base-Changing, arXiv:math/0611293 [math.NT], 2006-2007.

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

CROSSREFS

Sequence in context: A123948 A329430 A188886 * A083057 A099028 A279645

Adjacent sequences:  A131009 A131010 A131011 * A131013 A131014 A131015

KEYWORD

sign

AUTHOR

N. J. A. Sloane, Sep 24 2007

STATUS

approved

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Last modified September 28 10:48 EDT 2021. Contains 347714 sequences. (Running on oeis4.)