The primitives Pell. Dear all How to insert the entire table in OEIS? A X Y X A 2 3 2-2 5 6 7 8 3-3 10 11 14 15 4-4 17 18 23 24 5-5 26 27 34 35 6-6 37 38 47 48 7-7 50 51 62 63 8-8 65 66 79 80 9-9 82 83 98 99 10-10 101 102 119 120 11-11 122 123 142 143 12-12 145 146 and so on Regards, Vincenzo Librandi