Every run of digits of n in base 7 has length 2.

Terms

a(0) =8a(1) =16a(2) =24a(3) =32a(4) =40a(5) =48a(6) =392a(7) =408a(8) =416a(9) =424a(10) =432a(11) =440a(12) =784a(13) =792a(14) =808a(15) =816a(16) =824a(17) =832a(18) =1176a(19) =1184a(20) =1192a(21) =1208a(22) =1216a(23) =1224a(24) =1568a(25) =1576a(26) =1584a(27) =1592a(28) =1608a(29) =1616