Row sums of triangle A104984.

Terms

a(0) =1a(1) =0a(2) =-2a(3) =-6a(4) =-20a(5) =-92a(6) =-554a(7) =-4002a(8) =-33096a(9) =-306440a(10) =-3135766a(11) =-35134670a(12) =-427878628a(13) =-5628940084a(14) =-79572364498