| Pattern 1: d = 0, 2, 6, 8, 12, 18, 20, 26, 30, 32, 36, 42, 48, 50 | ||||
| Pattern 2: d = 0, 2, 8, 14, 18, 20, 24, 30, 32, 38, 42, 44, 48, 50 | ||||
| n | Value Pattern 1 | Value Pattern 2 | ∑ | Who |
| 2 | 1 | 0 | 1 | |
| 16 | 1 | 0 | 1 | |
| 17 | 2 | 1 | 3 | Dimitrios Betsis & Sten Säfholm (1982) |
| 18 | 3 | 1 | 4 | Vladimir Vlesycit, Tony Forbes |
| 19 | 8 | 7 | 15 | Vladimir Vlesycit (2006), Tony Forbes (1997) |
| 20 | 34 | 44 | 78 | Jörg Waldvogel (2009), Dana Jacobsen, Tom Hadley |
| 21 | 185 | 209 | 394 | Dana Jacobsen |
| 22 | 919 | 891 | 1 810 | Norman Luhn (Oct 2021) |