Smallest number of complexity n: smallest number requiring n 1's to build using + and *.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =10a(7) =11a(8) =17a(9) =22a(10) =23a(11) =41a(12) =47a(13) =59a(14) =89a(15) =107a(16) =167a(17) =179a(18) =263a(19) =347a(20) =467a(21) =683a(22) =719a(23) =1223a(24) =1438a(25) =1439a(26) =2879a(27) =3767a(28) =4283a(29) =6299