Engel expansion of Thue-Morse constant.

Terms

a(0) =3a(1) =5a(2) =6a(3) =9a(4) =12a(5) =19a(6) =92a(7) =173a(8) =242a(9) =703a(10) =1861a(11) =3186a(12) =4746a(13) =7843a(14) =26547a(15) =180987a(16) =383025a(17) =561307a(18) =2678667a(19) =66497629a(20) =118070060a(21) =287778019a(22) =527652876a(23) =2387762279a(24) =29492819981a(25) =118172840270a(26) =370227553800a(27) =421788291545