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One half of A075178.
1

%I #3 Mar 31 2012 13:20:08

%S 1,6,6,60,10,252,84,360,90,660,44,32760,5460,2520,360,12240,34,14364,

%T 1596,19800,13860,91080,920,982800,81900,19656,1512,48720,1160,

%U 1718640,114576,1884960,117810,21420,140,69090840,109668,17784,936,1623600,9020

%N One half of A075178.

%p seq(denom(coeff(convert(series(1/x+1/ln(1-x),x,50),polynom),x,i)*i!)/2,i=0..40); (C. Ronaldo)

%K nonn,easy

%O 0,2

%A _Wolfdieter Lang_, Sep 06, 2002