7 in base n.

Terms

a(0) =1111111a(1) =111a(2) =21a(3) =13a(4) =12a(5) =11a(6) =10a(7) =7a(8) =7a(9) =7a(10) =7a(11) =7a(12) =7a(13) =7a(14) =7a(15) =7a(16) =7a(17) =7a(18) =7a(19) =7a(20) =7a(21) =7a(22) =7a(23) =7a(24) =7a(25) =7a(26) =7a(27) =7a(28) =7a(29) =7