Numbers whose maximal base-7 run length is 2.

Terms

a(0) =8a(1) =16a(2) =24a(3) =32a(4) =40a(5) =48a(6) =49a(7) =56a(8) =58a(9) =59a(10) =60a(11) =61a(12) =62a(13) =65a(14) =73a(15) =81a(16) =89a(17) =97a(18) =98a(19) =106a(20) =112a(21) =113a(22) =115a(23) =116a(24) =117a(25) =118a(26) =122a(27) =130a(28) =138a(29) =146