Fixed points of A300956.

Terms

a(0) =0a(1) =15a(2) =21a(3) =21141a(4) =21156a(5) =21162a(6) =40095a(7) =40110a(8) =40116a(9) =72171a(10) =72186a(11) =72192a(12) =93312a(13) =93327a(14) =93333a(15) =112266a(16) =112281a(17) =112287a(18) =124659a(19) =124674a(20) =124680a(21) =145800a(22) =145815a(23) =145821a(24) =164754a(25) =164769a(26) =164775a(27) =181521a(28) =181536a(29) =181542