Fixed points of A067581.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =10a(10) =53a(11) =106a(12) =298a(13) =5790a(14) =7594a(15) =14650a(16) =15576a(17) =41612a(18) =66049a(19) =150564a(20) =154476a(21) =154484