Fixed points of A257345.

Terms

a(0) =0a(1) =1a(2) =2a(3) =4a(4) =8a(5) =16a(6) =21a(7) =32a(8) =42a(9) =64a(10) =84a(11) =128a(12) =168a(13) =256a(14) =336a(15) =512a(16) =672a(17) =1024a(18) =1344a(19) =2048a(20) =2231a(21) =2688a(22) =4096a(23) =4462a(24) =5376a(25) =8192a(26) =9324a(27) =10752a(28) =16384a(29) =18648