|
Term: ( n - 1 ) • 2n + 1 Total: 25 Reference: S. Harvey |
|||
| Number | Digits | When? | Who? |
|---|---|---|---|
| 660987 • 2660988 + 1 | 198984 | Feb 2010 | Harvey |
| 534506 • 2534507 + 1 | 160909 | May 2009 | Harvey |
| 460574 • 2460575 + 1 | 138653 | Nov 2008 | Harvey |
| 373346 • 2373347 + 1 | 112395 | Sep 2007 | Harvey |
| 338484 • 2338485 + 1 | 101900 | Mar 2005 | Harvey |
| 153427 • 2153428 + 1 | 46192 | - | Harvey |
| 133927 • 2133928 + 1 | 40322 | - | Harvey |
| 89730 • 289731 + 1 | 27017 | - | - |
| 88650 • 288651 + 1 | 26692 | - | Jo Yeong Uk |
| 61626 • 262627 + 1 | 18557 | - | - |
| 57003 • 257004 + 1 | 17165 | - | Harvey |
| 36390 • 236391 + 1 | 10960 | - | Oakes |
| 32604 • 232605 + 1 | 9820 | - | Oakes |
| 20802 • 220803 + 1 | 6267 | - | Oakes |
| 10884 • 210885 + 1 | 3281 | - | Lifchitz |
| 8667 • 28668 + 1 | 2614 | - | Oakes |
| 1482 • 21483 + 1 | 2614 | - | - |
| 1470 • 21471 + 1 | 446 | - | - |
| 80 • 281 + 1 | 27 | - | - |
| 54 • 255 + 1 | 19 | - | - |
| 50 • 251 + 1 | 18 | - | - |
| 26 • 227 + 1 | 10 | - | - |
| 6 • 27 + 1 | 3 | - | - |
| 2 • 23 + 1 | 2 | - | - |
| 1 • 22 + 1 | 1 | - | - |
|
Term: ( n + 1 ) • 2n + 1 Total: 29 Reference: S. Harvey |
|||
| Number | Digits | When? | Who? |
|---|---|---|---|
| 709947 • 2709946 + 1 | 213721 | Jun 2010 | Harvey |
| 247039 • 2247038 + 1 | 74372 | Jun 2004 | Harvey |
| 96750 • 296749 + 1 | 29130 | - | Kazuyoshi |
| 85375 • 285374 + 1 | 25706 | - | Lifchitz |
| 26563 • 226562 + 1 | 8001 | - | - |
| 21338 • 221337 + 1 | 6428 | - | - |
| 20965 • 220964 + 1 | 6316 | - | - |
| 20961 • 220960 + 1 | 6314 | - | - |
| 10179 • 210178 + 1 | 3068 | - | - |
| 7944 • 27943 + 1 | 2395 | - | - |
| 7554 • 27553 + 1 | 2278 | - | - |
| 2766 • 22765 + 1 | 836 | - | - |
| 1824 • 21823 + 1 | 553 | - | - |
| 1479 • 21478 + 1 | 449 | - | - |
| 1326 • 21325 + 1 | 402 | - | - |
| 867 • 2866 + 1 | 264 | - | - |
| 446 • 2445 + 1 | 137 | - | - |
| 295 • 2294 + 1 | 91 | - | - |
| 187 • 2186 + 1 | 59 | - | - |
| 134 • 2133 + 1 | 43 | - | - |
| 115 • 2114 + 1 | 37 | - | - |
| 87 • 286 + 1 | 28 | - | - |
| 67 • 266 + 1 | 22 | - | - |
| 66 • 265 + 1 | 22 | - | - |
| 27 • 226 + 1 | 22 | - | - |
| 14 • 213 + 1 | 5 | - | - |
| 7 • 26 + 1 | 3 | - | - |
| 6 • 25 + 1 | 3 | - | - |
| 3 • 22 + 1 | 2 | - | - |