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Number of partitions of [n] avoiding the pattern 231.
0

%I #15 Nov 18 2023 09:00:38

%S 1,1,2,5,15,52,202,858,3909,18822,94712,493834

%N Number of partitions of [n] avoiding the pattern 231.

%H Jonathan Bloom and Sergi Elizalde, <a href="http://arxiv.org/abs/1211.3442">Pattern avoidance in matchings and partitions</a>, arXiv preprint arXiv:1211.3442 [math.CO], 2012. See Table 2.

%Y Cf. A000110.

%K nonn,more

%O 0,3

%A _N. J. A. Sloane_, Jan 03 2013