A052999 / 18.

Terms

a(0) =0a(1) =0a(2) =0a(3) =0a(4) =5a(5) =1a(6) =3a(7) =5a(8) =110a(9) =11110a(10) =1a(11) =2a(12) =20a(13) =220a(14) =220a(15) =25a(16) =25a(17) =30a(18) =30a(19) =2a(20) =2a(21) =1a(23) =40a(24) =1a(25) =5a(26) =4a(27) =2a(28) =5a(29) =1a(30) =8