Fixed points in A375564.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =15a(5) =51a(6) =63a(7) =363a(8) =437a(9) =729a(10) =1385a(11) =1388a(12) =1413a(13) =2807a(14) =5418a(15) =5422a(16) =5428a(17) =5435a(18) =5451a(19) =5537a(20) =10790a(21) =10795a(22) =10803a(23) =10871a(24) =21505a(25) =21507a(26) =21899a(27) =22081a(28) =42969a(29) =43073