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Term: ( n - 1 ) • 2n - 1 Reference: S. Harvey |
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| Number | Digits | When | Who |
|---|---|---|---|
| 1817932 • 21817933 - 1 | 547259 | Jul 2014 | Harvey |
| 1172170 • 21172171 - 1 | 352865 | Oct 2012 | Harvey |
| 1165666 • 21165667 - 1 | 350907 | Nov 2012 | Harvey |
| 790694 • 2790695 - 1 | 238029 | Feb 2010 | Harvey |
| 665127 • 2665128 - 1 | 200230 | Feb 2010 | Harvey |
| 659152 • 2659153 - 1 | 198431 | Feb 2010 | Harvey |
| 446693 • 2446694 - 1 | 134474 | Sep 2008 | Harvey |
| 118019 • 2118020 - 1 | 35533 | - | Harvey |
| 21346 • 221347 - 1 | 6431 | - | Lifchitz |
| 13596 • 213597 - 1 | 4098 | - | Oakes |
| 10019 • 210020 - 1 | 3021 | - | Oakes |
| 8895 • 28896 - 1 | 2682 | - | - |
| 7036 • 27037 - 1 | 2123 | - | - |
| 687 • 2688 - 1 | 210 | - | - |
| 550 • 2551 - 1 | 169 | - | - |
| 324 • 2325 - 1 | 101 | - | - |
| 234 • 2235 - 1 | 74 | - | - |
| 34 • 235 - 1 | 13 | - | - |
| 27 • 228 - 1 | 10 | - | - |
| 10 • 211 - 1 | 5 | - | - |
| 4 • 25 - 1 | 3 | - | - |
| 3 • 24 - 1 | 2 | - | - |
| 1 • 22 - 1 | 1 | - | - |
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Term: ( n + 1 ) • 2n - 1 Reference: S. Harvey |
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| Number | Digits | When? | Who? |
|---|---|---|---|
| 587824 • 2587823 - 1 | 176959 | Sep 2009 | Harvey |
| 227140 • 2227139 - 1 | 68382 | - | Ballard |
| 159148 • 2159147 - 1 | 47914 | - | Ballard |
| 41494 • 241493 - 1 | 12496 | - | Lifchitz |
| 28835 • 228834 - 1 | 8685 | - | - |
| 20057 • 220056 - 1 | 6042 | - | - |
| 16487 • 216486 - 1 | 4967 | - | - |
| 14128 • 214127 - 1 | 4257 | - | - |
| 9513 • 29512 - 1 | 2868 | - | - |
| 4000 • 23999 - 1 | 1208 | - | - |
| 3946 • 23945 - 1 | 1192 | - | - |
| 2274 • 22273 - 1 | 688 | - | - |
| 1060 • 21059 - 1 | 322 | - | - |
| 856 • 2855 - 1 | 261 | - | - |
| 291 • 2290 - 1 | 90 | - | - |
| 264 • 2263 - 1 | 82 | - | - |
| 257 • 2256 - 1 | 80 | - | - |
| 243 • 2242 - 1 | 76 | - | - |
| 214 • 2213 - 1 | 67 | - | - |
| 126 • 2125 - 1 | 40 | - | - |
| 46 • 245 - 1 | 16 | - | - |
| 28 • 227 - 1 | 10 | - | - |
| 17 • 216 - 1 | 7 | - | - |
| 16 • 215 - 1 | 6 | - | - |
| 15 • 214 - 1 | 6 | - | - |
| 10 • 29 - 1 | 4 | - | - |
| 6 • 25 - 1 | 3 | - | - |
| 5 • 24 - 1 | 2 | - | - |
| 4 • 23 - 1 | 2 | - | - |
| 3 • 22 - 1 | 2 | - | - |
| 2 • 21 - 1 | 1 | - | - |