Smallest initial values leading to fixed points listed in A077092.

Terms

a(0) =1a(1) =4a(2) =24a(3) =7530a(4) =12100a(5) =32784a(6) =34950a(7) =69480a(8) =121104a(9) =420096a(10) =1018980a(11) =2846484a(12) =2946560a(13) =4160040a(14) =5387484a(15) =5512800a(16) =5729520a(17) =13108800a(18) =23524452a(19) =24799080a(20) =25885760a(21) =31382952a(22) =53344272a(23) =100929036a(24) =150057300a(25) =352636452