Coefficients of polynomials P(n,x):=-2+P(n-1,x)^2, where P(0,x)=x-2.

Terms

a(0) =1a(1) =-2a(2) =1a(3) =-4a(4) =2a(5) =1a(6) =-8a(7) =20a(8) =-16a(9) =2a(10) =1a(11) =-16a(12) =104a(13) =-352a(14) =660a(15) =-672a(16) =336a(17) =-64a(18) =2a(19) =1a(20) =-32a(21) =464a(22) =-4032a(23) =23400a(24) =-95680a(25) =283360a(26) =-615296a(27) =980628a(28) =-1136960a(29) =940576