Row sums of triangle A118438.

Terms

a(0) =1a(1) =0a(2) =4a(3) =0a(4) =48a(5) =160a(6) =-256a(7) =0a(8) =-1792a(9) =-7680a(10) =16384a(11) =0a(12) =135168a(13) =532480a(14) =-1048576a(15) =0a(16) =-8323072a(17) =-33423360a(18) =67108864a(19) =0a(20) =537919488a(21) =2149580800a(22) =-4294967296a(23) =0a(24) =-34342961152a(25) =-137405399040a(26) =274877906944a(27) =0a(31) =0