Quotient of 'base-15' division described in A032561.

Terms

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