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A080254
For n>3, a(n) is the number of elements in the Coxeter complex of type D_n (although the sequence starts at n=0. See comments below for precise explanation).
+0
5
1, 1, 9, 75, 865, 12483, 216113, 4364979, 100757313, 2616517443, 75496735057, 2396212835283, 82968104980961, 3112139513814243, 125716310807844081, 5441108944839913587, 251195548533025953409, 12321551453507301079683
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified December 9 14:43 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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