Numbers k such that digit sum of k = number of distinct prime factors of k.

Terms

a(0) =20a(1) =30a(2) =102a(3) =120a(4) =200a(5) =300a(6) =1002a(7) =1200a(8) =2000a(9) =2001a(10) =2002a(11) =3000a(12) =3010a(13) =10001a(14) =10002a(15) =10011a(16) =10030a(17) =10120a(18) =11001a(19) =11020a(20) =11110a(21) =12000a(22) =20000a(23) =20001a(24) =21010a(25) =30000a(26) =30030a(27) =30100a(28) =100001a(29) =100030