Numbers n such that the sum of digits of 2n equals 4.

Terms

a(0) =2a(1) =11a(2) =20a(3) =56a(4) =65a(5) =101a(6) =110a(7) =155a(8) =200a(9) =506a(10) =515a(11) =551a(12) =560a(13) =605a(14) =650a(15) =1001a(16) =1010a(17) =1055a(18) =1100a(19) =1505a(20) =1550a(21) =2000a(22) =5006a(23) =5015a(24) =5051a(25) =5060a(26) =5105a(27) =5150a(28) =5501a(29) =5510