a(n) = floor(log(A111288(n))).

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =1a(6) =1a(7) =2a(8) =3a(9) =5a(10) =8a(11) =12a(12) =17a(13) =26a(14) =38a(15) =56a(16) =82a(17) =120a(18) =176a(19) =258a(20) =379a(21) =556a(22) =815a(23) =1194a(24) =1751a(25) =2566a(26) =3761a(27) =5512a(28) =8079a(29) =11840