a(n) = floor(15/n).

Terms

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