Negative numbers written in a bits-of-Pi/primorial base system.

Terms

a(0) =1a(1) =10a(2) =11a(3) =20a(4) =21a(5) =16400a(6) =16401a(7) =16410a(8) =16411a(9) =16420a(10) =16421a(11) =16300a(12) =16301a(13) =16310a(14) =16311a(15) =16320a(16) =16321a(17) =16200a(18) =16201a(19) =16210a(20) =16211a(21) =16220a(22) =16221a(23) =16100a(24) =16101a(25) =16110a(26) =16111a(27) =16120a(28) =16121a(29) =16000