Liczby Keitha
| n | n-cyfrowe liczby Keitha |
| 2 | 14, 19, 28, 47, 61, 75 |
| 3 | 197, 742 |
| 4 | 1104, 1537, 2208, 2580, 3684, 4788, 7385, 7647, 7909 |
| 5 | 31331, 34285, 34348, 55604, 62662, 86935, 93993 |
| 6 | 120284, 129106, 147640, 156146, 174680, 183186, 298320, 355419, 694280, 925993 |
| 7 | 1084051, 7913837 |
| 8 | 11436171, 33445755, 44121607 |
| 9 | 129572008, 251133297 |
| 10 | brak |
| 11 | 24769286411, 96189170155 |
| 12 | 171570159070, 202366307758, 239143607789, 296658839738 |
| 13 | 1934197506555, 8756963649152 |
| 14 | 43520999798747, 74596893730427, 97295849958669 |
| 15 | 120984833091531, 270585509032586, 754788753590897 |
| 16 | 3621344088074041, 3756915124022254, 4362827422508274 |
| 17 | 11812665388886672, 14508137312404344, 16402582054271374, 69953250322018194, 73583709853303061 |
| 18 | 119115440241433462, 166308721919462318, 301273478581322148 |
| 19 | 1362353777290081176, 3389041747878384662, 5710594497265802190, 5776750370944624064, 6195637556095764016 |