Numbers n such that 1 + Sum{k=1..n/2} A001223(2k-1)*(-1)^k = 0.

Terms

a(0) =2a(1) =6a(2) =14a(3) =190a(4) =194a(5) =200a(6) =306a(7) =462a(8) =468a(9) =474a(10) =478a(11) =490a(12) =560a(13) =1208a(14) =1890a(15) =1938a(16) =23716a(17) =23850a(18) =25226a(19) =25834a(20) =25968a(21) =26642a(22) =26650a(23) =26998a(24) =48316a(25) =311888a(26) =311922a(27) =313946a(28) =331540a(29) =331762