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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 7 |
| 4 | 31 |
| 5 | 63 |
| 6 | 127 |
| 7 | 63 |
| 8 | 511 |
| 9 | 447 |
| 10 | 2047 |
| 11 | 4095 |
| 12 | 8191 |
| 13 | 3583 |
| 14 | 32767 |
| 15 | 8191 |
| 16 | 131071 |
| 17 | 53247 |
| 18 | 524287 |
| 19 | 126975 |
| 20 | 2097151 |
| 21 | 1023999 |
| 22 | 8388607 |
| 23 | 3735551 |
| 24 | 33554431 |
| 25 | 7372799 |
| 26 | 134217727 |
| 27 | 65273855 |
| 28 | 536870911 |
| 29 | 117571583 |
| 30 | 2147483647 |
| 31 | 1041235967 |
| 32 | 8589934591 |
| 33 | 1880883199 |
[1,1,7,7,31,63,127,63,511,447,2047,4095,8191,3583, 32767,8191,131071,53247,524287,126975,2097151, 1023999,8388607,3735551,33554431,7372799, 134217727,65273855,536870911,117571583,2147483647, 1041235967,8589934591,1880883199] |