Lengths of successive generations of the Kolakoski sequence A000002.

Terms

a(0) =1a(1) =2a(2) =4a(3) =7a(4) =11a(5) =18a(6) =28a(7) =43a(8) =65a(9) =99a(10) =150a(11) =226a(12) =340a(13) =511a(14) =768a(15) =1153a(16) =1728a(17) =2590a(18) =3885a(19) =5826a(20) =8742a(21) =13116a(22) =19674a(23) =29514a(24) =44280a(25) =66431a(26) =99667a(27) =149531a(28) =224306a(29) =336450