Numbers whose base-7 representation has exactly 7 runs.

Terms

a(0) =120100a(1) =120101a(2) =120102a(3) =120103a(4) =120104a(5) =120105a(6) =120113a(7) =120114a(8) =120116a(9) =120117a(10) =120118a(11) =120119a(12) =120120a(13) =120121a(14) =120122a(15) =120124a(16) =120125a(17) =120126a(18) =120127a(19) =120128a(20) =120129a(21) =120130a(22) =120132a(23) =120133a(24) =120134a(25) =120135a(26) =120136