Quotient of 'base-7' division described in A032549.

Terms

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