Begins with (2, 3); avoids 3-term arithmetic progressions.

Terms

a(0) =2a(1) =3a(2) =5a(3) =6a(4) =11a(5) =12a(6) =14a(7) =15a(8) =29a(9) =30a(10) =32a(11) =33a(12) =38a(13) =39a(14) =41a(15) =42a(16) =83a(17) =84a(18) =86a(19) =87a(20) =92a(21) =93a(22) =95a(23) =96a(24) =110a(25) =111a(26) =113a(27) =114a(28) =119a(29) =120