Numbers k with the property that their basins (as defined in A204539) are 2.

Terms

a(0) =5a(1) =8a(2) =10a(3) =16a(4) =22a(5) =26a(6) =106a(7) =110a(8) =182a(9) =234a(10) =282a(11) =288a(12) =318a(13) =434a(14) =766a(15) =1056a(16) =1072a(17) =1462a(18) =1550a(19) =1930a(20) =3024a(21) =4330a(22) =5424a(23) =9398a(24) =10634a(25) =53094a(26) =90602a(27) =151632a(28) =384002a(29) =511638