Expansion of e in base 4.

Terms

a(0) =2a(1) =2a(2) =3a(3) =1a(4) =3a(5) =3a(6) =2a(7) =0a(8) =1a(9) =1a(10) =1a(11) =0a(12) =1a(13) =1a(14) =2a(15) =0a(16) =2a(17) =2a(18) =0a(19) =2a(20) =2a(21) =3a(22) =2a(23) =3a(24) =1a(25) =0a(26) =2a(27) =2a(28) =2a(29) =1