Triangle read by rows, T[n,2i-1]=2T[n-1,i],T[n,2i]=2k-1-2T[n-1,i].

Terms

a(0) =1a(1) =2a(2) =91a(3) =4a(4) =89a(5) =182a(6) =-89a(7) =8a(8) =85a(9) =178a(10) =-85a(11) =364a(12) =-271a(13) =-178a(14) =271a(15) =16a(16) =77a(17) =170a(18) =-77a(19) =356a(20) =-263a(21) =-170a(22) =263a(23) =728a(24) =-635a(25) =-542a(26) =635a(27) =-356a(28) =449a(29) =542