Length of n-th run of digit 2 in A030386.

Terms

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