Values of x arising from representations of -n in A102535.

Terms

a(0) =1a(1) =1a(2) =-1a(3) =-5a(4) =1a(5) =7a(6) =-1a(7) =-68a(8) =1a(9) =1a(10) =-12a(11) =228a(12) =-1a(13) =-15a(14) =-770a(15) =-1a(16) =1a(17) =2460a(18) =-5166a(19) =-1a(20) =-135762627a(21) =63a(22) =-266a(23) =5a(24) =1a(25) =-175a(26) =27728847a(27) =-1a(28) =-19535516a(29) =-15