Starts 0, 4 and contains no 3-term arithmetic progression.

Terms

a(0) =0a(1) =4a(2) =5a(3) =7a(4) =11a(5) =12a(6) =16a(7) =23a(8) =26a(9) =31a(10) =33a(11) =37a(12) =38a(13) =44a(14) =49a(15) =56a(16) =73a(17) =78a(18) =80a(19) =85a(20) =95a(21) =99a(22) =106a(23) =124a(24) =128a(25) =131a(26) =136a(27) =143a(28) =169a(29) =188