[math-fun] Rohan notices that integer 60º triangles come in pairs:

{7 | 8 | 3, 7 | 8 | 5, 13 | 15 | 7, 13 | 15 | 8, 19 | 21 | 5, 19 | 21 | 16, 31 | 35 | 11, 31 | 35 | 24, . . ., 859 | 989 | 429, 859 | 989 | 560, 889 | 999 | 295, 889 | 999 | 704,. . . Sometimes very close pairs: 181 | 209 | 104, 181 | 209 | 105, . . ., 2521 | 2911 | 1455, 2521 | 2911 | 1456, . . . --rwg