a(n) = floor(1/frac(n*Pi)).

Terms

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