a(n) = least positive integer > a(n-1) and not equal to a(i)*a(j)-2 for 1<=i<j<=n.

Terms

a(0) =1a(1) =3a(2) =4a(3) =5a(4) =6a(5) =7a(6) =8a(7) =9a(8) =11a(9) =12a(10) =14a(11) =15a(12) =17a(13) =20a(14) =21a(15) =23a(16) =24a(17) =27a(18) =29a(19) =32a(20) =35a(21) =36a(22) =37a(23) =39a(24) =41a(25) =44a(26) =45a(27) =47a(28) =48a(29) =50