%I #5 May 19 2016 04:13:23
%S 1,59,59,1
%N The H_3-Eulerian numbers.
%C a(n) is the number of elements of the Weyl group H_3 that have a descent set of size n.
%C Sum_{n=0..3} a(n) = 120, which is the order of the group H_3.
%D T. K. Petersen, Eulerian Numbers, Birkhauser, 2015, Table 11.5.
%Y Cf. A008292, A060187, A066094, A273000, A273035, A273036, A273181.
%K nonn,fini,full
%O 0,2
%A _Tom Edgar_, May 17 2016