Alternating row sums of triangle A090441.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =2a(5) =0a(6) =-3118a(7) =0a(8) =442703522a(9) =0a(11) =0a(13) =0a(15) =0a(17) =0