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%I #18 Jul 24 2017 07:55:46
%S 8,16,48,192,960,5760,40320,322560,2903040,29030400,319334400,
%T 3832012800,49816166400,697426329600,10461394944000,167382319104000,
%U 2845499424768000,51218989645824000,973160803270656000
%N a(n) = 8 * n!.
%H Luis Manuel Rivera, <a href="http://arxiv.org/abs/1406.3081">Integer sequences and k-commuting permutations</a>, arXiv preprint arXiv:1406.3081 [math.CO], 2014.
%F a(n) = 8 * A000142(n) for n > 0.
%p A159038 := proc(n)
%p 8*n! ;
%p end proc:
%p seq(A159038(n),n=1..10) ; # _R. J. Mathar_, Sep 30 2013
%Y Cf. A000142, A052560, A052578, A052648, A052849, A062098.
%K easy,nonn
%O 1,1
%A _Zerinvary Lajos_, Apr 03 2009
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