Row 4 in rectangular array A292929.

Terms

a(0) =2a(1) =-4a(2) =8a(3) =-12a(4) =24a(5) =-40a(6) =38a(7) =-96a(8) =138a(9) =-134a(10) =316a(11) =-384a(12) =384a(13) =-790a(14) =982a(15) =-1168a(16) =1976a(17) =-2400a(18) =2904a(19) =-4464a(20) =5632a(21) =-6956a(22) =9904a(23) =-12320a(24) =15186a(25) =-20938a(26) =26000a(27) =-32008a(28) =42560a(29) =-52278