%I #3 Mar 30 2012 16:48:57
%S 1,-2,-2,-2,-6,-10,-34,-82,-254,-730,-2238,-6826,-21370,-67122,
%T -213654,-684258,-2208694,-7169298,-23402738,-76748130,-252790518,
%U -835816658,-2773236614,-9230776706,-30814377058,-103139338858,-346067984622,-1163810570178
%N G.f. is (1-S)/(1+S), where S = g.f. for A000084.
%Y Cf. A036655, A000137.
%K sign
%O 0,2
%A _N. J. A. Sloane_, Jan 01 2001