Every run of digits of n in base 4 has length 2.

Terms

a(0) =5a(1) =10a(2) =15a(3) =80a(4) =90a(5) =95a(6) =160a(7) =165a(8) =175a(9) =240a(10) =245a(11) =250a(12) =1285a(13) =1290a(14) =1295a(15) =1440a(16) =1445a(17) =1455a(18) =1520a(19) =1525a(20) =1530a(21) =2565a(22) =2570a(23) =2575a(24) =2640a(25) =2650a(26) =2655a(27) =2800a(28) =2805a(29) =2810