Squares mod 61.

Terms

a(0) =0a(1) =1a(2) =3a(3) =4a(4) =5a(5) =9a(6) =12a(7) =13a(8) =14a(9) =15a(10) =16a(11) =19a(12) =20a(13) =22a(14) =25a(15) =27a(16) =34a(17) =36a(18) =39a(19) =41a(20) =42a(21) =45a(22) =46a(23) =47a(24) =48a(25) =49a(26) =52a(27) =56a(28) =57a(29) =58