%I #8 Jan 17 2025 14:56:11
%S 1,11,-54,302,-1483,7009,-32030,143210,-629848,2735812,-11767534,
%T 50220042,-212952283,898198877,-3771484798,15775723922,-65770848988,
%U 273420862112,-1133802617998,4691140763402,-19371432850768,79850555673176,-328627887379774,1350540667070002,-5543004766417298
%N Column 3 of triangle A200171.
%o (PARI) {a(n)=local(A=1+x); for(i=1, (n+2)^2+n+6, A=(1+x*A)*(1+x^(n+2)/(A+x*O(x^((n+2)^2+3))))); polcoeff(A, (n+2)^2+n+4)}
%Y Cf. A200171, A200173, A200140.
%K sign
%O 1,2
%A _Paul D. Hanna_, Nov 13 2011