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| n | a(n) |
|---|---|
| 0 | 2 |
| 1 | 5 |
| 2 | 3 |
| 3 | 7 |
| 4 | 47 |
| 5 | 31 |
| 6 | 191 |
| 7 | 127 |
| 8 | 1279 |
| 9 | 3583 |
| 10 | 5119 |
| 11 | 6143 |
| 12 | 20479 |
| 13 | 8191 |
| 14 | 81919 |
| 15 | 294911 |
| 16 | 1114111 |
| 17 | 131071 |
| 18 | 786431 |
| 19 | 524287 |
| 20 | 17825791 |
| 21 | 14680063 |
| 22 | 138412031 |
| 23 | 109051903 |
| 24 | 654311423 |
| 25 | 1912602623 |
| 26 | 738197503 |
| 27 | 2818572287 |
| 28 | 7247757311 |
| 29 | 3758096383 |
| 30 | 228707008511 |
| 31 | 2147483647 |
[2,5,3,7,47,31,191,127,1279,3583,5119,6143,20479, 8191,81919,294911,1114111,131071,786431,524287, 17825791,14680063,138412031,109051903,654311423, 1912602623,738197503,2818572287,7247757311, 3758096383,228707008511,2147483647] |