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| |
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A262291
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a(n) = Sum_k k!*A262292(n,k).
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1
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| |
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OFFSET
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2,2
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LINKS
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P. J. Cameron, M. Gadouleau, J. D. Mitchell, and Y. Peresse, Chains of subsemigroups, arXiv preprint arXiv:1501.06394 [math.GR], 2015. See Table 1.
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CROSSREFS
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KEYWORD
|
nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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