Index of the first occurrence of n in A385073.

Terms

a(0) =1a(1) =2a(2) =20737a(3) =4a(4) =9a(5) =6a(6) =3763a(7) =20a(8) =40369a(9) =35a(10) =2951a(11) =16a(12) =35622023a(13) =27a(14) =2041a(15) =49a(16) =25a(17) =42a(18) =697a(19) =2168a(20) =18537061a(21) =31958a(22) =117a(23) =66a(24) =356698651a(25) =147a(26) =7863277a(27) =28