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A030128
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Number of Steiner triple systems (STS's) on n elements.
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6
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1, 0, 1, 0, 0, 0, 30, 0, 840, 0, 0, 0, 1197504000, 0, 60281712691200, 0, 0, 0, 1348410350618155344199680000
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OFFSET
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1,7
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REFERENCES
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L. Comtet, Advanced Combinatorics, Reidel, 1974, p. 304.
CRC Handbook of Combinatorial Designs, 1996, p. 70.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,nice,hard,more
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AUTHOR
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STATUS
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approved
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