|
Search: id:A007173
|
|
|
| A007173 |
|
Number of simplicial 3-clusters with n cells.
(Formerly M3401)
|
|
+0
2
|
|
| 1, 1, 1, 4, 10, 40, 171, 831, 4147, 21822, 117062, 642600, 3582322, 20256886, 115888201, 669911568, 3907720521, 22979343010, 136107859377, 811430160282
(list; graph; listen)
|
|
|
OFFSET
|
1,4
|
|
|
COMMENT
|
Also arises in enumeration od stereo isomers of alkane systems.
|
|
REFERENCES
|
S. J. Cyvin et al., Enumeration of staggered conformers of alkanes: complete solution ..., J. Molec. Struct., 413 (1997), 237-239.
F. Hering et al., The enumeration of stack polytopes and simplicial clusters, Discrete Math., 40 (1982), 203-217.
|
|
CROSSREFS
|
Sequence in context: A051479 A053792 A032121 this_sequence A114918 A122648 A058819
Adjacent sequences: A007170 A007171 A007172 this_sequence A007174 A007175 A007176
|
|
KEYWORD
|
nonn,nice,more
|
|
AUTHOR
|
njas
|
|
|
Search completed in 0.002 seconds
|
