First differences of A160239.

Terms

a(0) =7a(1) =0a(2) =16a(3) =-16a(4) =56a(5) =-40a(6) =88a(7) =-104a(8) =56a(9) =0a(10) =128a(11) =-168a(12) =168a(13) =-80a(14) =304a(15) =-408a(16) =56a(17) =0a(18) =128a(19) =-128a(20) =448a(21) =-320a(22) =704a(23) =-872a(24) =168a(25) =0a(26) =384a(27) =-464a(28) =784a(29) =-480