Fixed points in A376198.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =11a(5) =12a(6) =27a(7) =28a(8) =59a(9) =60a(10) =123a(11) =124a(12) =125a(13) =126a(14) =255a(15) =256a(16) =515a(17) =516a(18) =517a(19) =518a(20) =519a(21) =520a(22) =1043a(23) =1044a(24) =1045a(25) =1046a(26) =1047a(27) =1048a(28) =2099a(29) =2100