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Number of primitive permutations with n buds and 5 red or blue elements.
1

%I #9 Jul 11 2022 13:40:53

%S 1,18,309,5628,110781,2361222

%N Number of primitive permutations with n buds and 5 red or blue elements.

%H Adrian Ocneanu, <a href="http://arxiv.org/abs/1304.1263">On the inner structure of a permutation: bicolored partitions and Eulerians, trees and primitives</a>, arXiv preprint arXiv:1304.1263 [math.CO], 2013.

%K nonn,more

%O 0,2

%A _N. J. A. Sloane_, Jun 05 2013