a(n+1) = a(n)-th composite number, with a(1) = 11.

Terms

a(0) =11a(1) =20a(2) =32a(3) =48a(4) =68a(5) =93a(6) =124a(7) =162a(8) =209a(9) =266a(10) =334a(11) =415a(12) =513a(13) =628a(14) =764a(15) =922a(16) =1108a(17) =1325a(18) =1574a(19) =1858a(20) =2186a(21) =2562a(22) =2992a(23) =3480a(24) =4038a(25) =4670a(26) =5379a(27) =6184a(28) =7094a(29) =8115