Squares mod 55.

Terms

a(0) =0a(1) =1a(2) =4a(3) =5a(4) =9a(5) =11a(6) =14a(7) =15a(8) =16a(9) =20a(10) =25a(11) =26a(12) =31a(13) =34a(14) =36a(15) =44a(16) =45a(17) =49