G.f.: (32*x^7/(1-2*x) + 16*x^5 + 24*x^6)/(1-2*x^2).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =16a(6) =24a(7) =64a(8) =112a(9) =256a(10) =480a(11) =1024a(12) =1984a(13) =4096a(14) =8064a(15) =16384a(16) =32512a(17) =65536a(18) =130560a(19) =262144a(20) =523264a(21) =1048576a(22) =2095104a(23) =4194304a(24) =8384512a(25) =16777216a(26) =33546240a(27) =67108864a(28) =134201344a(29) =268435456