Let S = squares; a(0)=0; a(n) = smallest m such that m - a(i) is not in S for any i < n.

Terms

a(0) =0a(1) =2a(2) =5a(3) =7a(4) =10a(5) =12a(6) =15a(7) =17a(8) =20a(9) =22a(10) =34a(11) =39a(12) =44a(13) =52a(14) =57a(15) =62a(16) =65a(17) =67a(18) =72a(19) =85a(20) =95a(21) =109a(22) =119a(23) =124a(24) =127a(25) =130a(26) =132a(27) =137a(28) =142a(29) =147