a(n) is square mod a(i), i < n.

Terms

a(0) =1a(1) =2a(2) =7a(3) =14a(4) =31a(5) =62a(6) =113a(7) =226a(8) =233a(9) =466a(10) =647a(11) =1294a(12) =1487a(13) =2974a(14) =4919a(15) =6329a(16) =7951a(17) =12658a(18) =15902a(19) =26329a(20) =26833a(21) =47737a(22) =52658a(23) =53623a(24) =53666a(25) =95474a(26) =107246a(27) =128959a(28) =135697a(29) =142327