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Search: id:A019999
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| A019999 |
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Number of similarity classes of descendants created by bisection refinement from an initial n-simplex. |
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+0
1
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| 4, 36, 384, 4800, 69120, 1128960, 20643840, 418037760, 9289728000, 224811417600, 5885971660800, 165788201779200, 4999151930572800, 160687026339840000, 5484783832399872000, 198137815945445376000
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OFFSET
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0,1
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REFERENCES
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J. M. Maubach: The amount of similarity classes created by local n-simplicial bisection refinement, 1996.
J. M. Maubach, Local bisection refinement for n-simplicial grids generated by reflections, SIAM J. Scientific Computing, 16(1995), 210-227.
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FORMULA
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n*n!*2^(n-2).
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CROSSREFS
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Sequence in context: A026334 A163455 A138736 this_sequence A002894 A131765 A132864
Adjacent sequences: A019996 A019997 A019998 this_sequence A020000 A020001 A020002
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KEYWORD
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nonn
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AUTHOR
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Joseph Maria Maubach (maubach(AT)una25.math.pitt.edu)
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