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A128819
Dimensions in which the simplex has two intermediate skeletons with the same centroid.
0
13, 21, 29, 31, 40, 43, 51, 53, 57, 65
OFFSET
1,1
COMMENTS
"There are infinitely many dimensions in which this phenomenon occurs.... They are quite sparse -- sparser than the prime integers.... It is impossible in any dimension for there to be three intermediate skeletons with the same centroid" [Krantz, p. 13].
LINKS
Steven G. Krantz, Higher dimensional conundra, 8 Apr 2007, table and formula on p. 13, arXiv:0704.1041
CROSSREFS
Sequence in context: A304948 A087683 A195375 * A165955 A331116 A050711
KEYWORD
nonn
AUTHOR
Jonathan Vos Post, Apr 10 2007
STATUS
approved