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A131011 A121295(n) - A121263(n). 1
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 45, 134, 309, 652, 1323, 2634, 5193, 10184, 19911, 38854, 133040, 412527, 1241773, 3701864, 10999194, 32642353, 96825335, 287134794, 851344708, 2523819059, 10866247001, 43994094066, 175538023511, 697843906028 (list; graph; refs; listen; history; text; internal format)
OFFSET

10,11

COMMENTS

We conjecture that all terms are >= 0.

REFERENCES

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.

LINKS

Table of n, a(n) for n=10..43.

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

CROSSREFS

Sequence in context: A206209 A098924 A195318 * A156370 A044377 A044758

Adjacent sequences:  A131008 A131009 A131010 * A131012 A131013 A131014

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Sep 24 2007

STATUS

approved

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Last modified March 27 22:02 EDT 2017. Contains 284182 sequences.