Numbers whose base-4 representation contains exactly three 1's and four 2's.

Terms

a(0) =5546a(1) =5738a(2) =5786a(3) =5798a(4) =5801a(5) =6506a(6) =6554a(7) =6566a(8) =6569a(9) =6746a(10) =6758a(11) =6761a(12) =6806a(13) =6809a(14) =6821a(15) =9578a(16) =9626a(17) =9638a(18) =9641a(19) =9818a(20) =9830a(21) =9833a(22) =9878a(23) =9881a(24) =9893a(25) =10586a(26) =10598a(27) =10601a(28) =10646a(29) =10649