Integer part of n#/(p-3)#, where p=preceding prime to n.

Terms

a(0) =3a(1) =15a(2) =35a(3) =11a(4) =143a(5) =17a(6) =323a(7) =23a(8) =29a(9) =899a(10) =37a(11) =41a(12) =1763a(13) =47a(14) =53a(15) =59a(16) =3599a(17) =67a(18) =71a(19) =5183a(20) =79a(21) =83a(22) =89a(23) =97a(24) =101a(25) =10403a(26) =107a(27) =11663a(28) =113a(29) =127