Inverse of A304531.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =11a(5) =3a(6) =42a(7) =20a(8) =8a(9) =12a(10) =237a(11) =5a(12) =1798a(13) =43a(14) =14a(15) =96a(16) =7192a(17) =9a(18) =69611a(19) =16a(20) =45a(21) =238a(22) =431203a(23) =21a(24) =32a(25) =1799a(26) =25a(27) =47a(28) =2401568a(29) =13