Length of n-th run of 1's in A030308.

Terms

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