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A103574 Triangle read by rows giving number of pure shifted complexes in k dimensions on n nodes (n >= 1, 0 <= d <= n-1). +0
1
1, 1, 1, 1, 2, 1, 1, 4, 3, 1, 1, 8, 11, 4, 1, 1, 16, 50, 26, 5, 1 (list; table; graph; listen)
OFFSET

1,5

REFERENCES

C. Klivans, Obstructions to shiftedness, Discrete Comput. Geom., 33 (2005), 535-545.

EXAMPLE

Triangle begins:

1

1 1

1 2 1

1 4 3 1

1 8 11 4 1

1 16 50 26 5 1

CROSSREFS

Sequence in context: A113993 A103323 A092056 this_sequence A112682 A033185 A105632

Adjacent sequences: A103571 A103572 A103573 this_sequence A103575 A103576 A103577

KEYWORD

nonn,tabl

AUTHOR

njas, Mar 23 2005

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Last modified July 24 12:00 EDT 2008. Contains 142294 sequences.


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