Signed row sums of A066667.

Terms

a(0) =1a(1) =1a(2) =1a(3) =-1a(4) =-19a(5) =-151a(6) =-1091a(7) =-7841a(8) =-56519a(9) =-396271a(10) =-2442439a(11) =-7701409a(12) =145269541a(13) =4833158329a(14) =104056218421