In A015922, not in A033553.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =8a(5) =248a(6) =731a(7) =1333a(8) =1533a(9) =2583a(10) =2847a(11) =3503a(12) =4161a(13) =4251a(14) =4947a(15) =4983a(16) =5355a(17) =5715a(18) =6141a(19) =7503a(20) =8103a(21) =9435a(22) =9513a(23) =9831a(24) =10923a(25) =12291a(26) =13107a(27) =14043a(28) =17608a(29) =17889