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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 10 |
| 6 | 20 |
| 7 | 27 |
| 8 | 31 |
| 9 | 40 |
| 10 | 127 |
| 11 | 138 |
| 12 | 219 |
| 13 | 245 |
| 14 | 276 |
| 15 | 552 |
| 16 | 650 |
| 17 | 682 |
| 18 | 1364 |
| 19 | 2047 |
| 20 | 2728 |
| 21 | 8191 |
| 22 | 10922 |
| 23 | 13515 |
| 24 | 14043 |
| 25 | 32747 |
| 26 | 112347 |
| 27 | 131071 |
| 28 | 524287 |
| 29 | 2796202 |
| 30 | 3459945 |
| 31 | 5592404 |
| 32 | 7124187 |
| 33 | 8388607 |
| 34 | 8530050 |
| 35 | 10660010 |
| 36 | 11184808 |
| 37 | 16645111 |
| 38 | 17060100 |
| 39 | 21320020 |
| 40 | 33554431 |
[1,2,3,7,10,20,27,31,40,127,138,219,245,276,552, 650,682,1364,2047,2728,8191,10922,13515,14043, 32747,112347,131071,524287,2796202,3459945, 5592404,7124187,8388607,8530050,10660010,11184808, 16645111,17060100,21320020,33554431] |