Number of 1's in row n of the Kolakoski fan A143477.

Terms

a(0) =1a(1) =0a(2) =0a(3) =2a(4) =3a(5) =5a(6) =7a(7) =9a(8) =14a(9) =22a(10) =33a(11) =47a(12) =77a(13) =112a(14) =170a(15) =251a(16) =384a(17) =571a(18) =855a(19) =1275a(20) =1919a(21) =2873a(22) =4305a(23) =6480a(24) =9706a(25) =14569a(26) =21861a(27) =32819a(28) =49201a(29) =73743