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A262291 a(n) = Sum_k k!*A262292(n,k). 1
0, 24, 330, 5382, 98250 (list; graph; refs; listen; history; text; internal format)
OFFSET
2,2
LINKS
P. J. Cameron, M. Gadouleau, J. D. Mitchell, Y. Peresse, Chains of subsemigroups, arXiv preprint arXiv:1501.06394 [math.GR], 2015. See Table 1.
CROSSREFS
Cf. A262292.
Sequence in context: A295250 A295649 A188779 * A267838 A045543 A125459
KEYWORD
nonn,more
AUTHOR
N. J. A. Sloane, Sep 21 2015
STATUS
approved

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Last modified March 28 12:26 EDT 2024. Contains 371254 sequences. (Running on oeis4.)