Exactly 10 consecutive odd integers starting with n are composite.

Terms

a(0) =1131a(1) =1341a(2) =1673a(3) =1953a(4) =2183a(5) =2313a(6) =2483a(7) =2559a(8) =2979a(9) =3143a(10) =3231a(11) =3279a(12) =3471a(13) =3741a(14) =3969a(15) =4029a(16) =4181a(17) =4307a(18) =4527a(19) =4763a(20) =4841a(21) =5127a(22) =5241a(23) =5361a(24) =5451a(25) =5537a(26) =5603a(27) =5759a(28) =5961a(29) =6177