a(n) is such that A145521(n) = A053810(a(n)).

Terms

a(0) =1a(1) =3a(2) =2a(3) =6a(4) =5a(5) =4a(6) =10a(7) =23a(8) =12a(9) =7a(10) =39a(11) =9a(12) =97a(13) =24a(14) =164a(15) =484a(16) =2759a(17) =5044a(18) =109a(19) =32334a(20) =114605a(21) =216960a(22) =8a(23) =14a(24) =252a(25) =785135a(26) =5503557a(27) =28a(28) =39222428a(29) =75703838