| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 2 |
| 2 | 3 |
| 3 | 12 |
| 4 | 7 |
| 5 | 56 |
| 6 | 15 |
| 7 | 240 |
| 8 | 31 |
| 9 | 992 |
| 10 | 63 |
| 11 | 4046 |
| 12 | 119 |
| 13 | 16280 |
| 14 | 255 |
| 15 | 65284 |
| 16 | 507 |
| 17 | 261700 |
| 18 | 1019 |
| 19 | 1047790 |
| 20 | 1951 |
| 21 | 4192484 |
| 22 | 3995 |
| 23 | 16774140 |
| 24 | 8067 |
| 25 | 67102716 |
| 26 | 16111 |
| 27 | 268421116 |
| 28 | 32323 |
| 29 | 1073714172 |
| 30 | 65011 |
| 31 | 4294911614 |
| 32 | 131007 |
| 33 | 17179754056 |
| 34 | 256447 |
| 35 | 68719255132 |
| 36 | 519139 |
[1,2,3,12,7,56,15,240,31,992,63,4046,119,16280, 255,65284,507,261700,1019,1047790,1951,4192484, 3995,16774140,8067,67102716,16111,268421116,32323, 1073714172,65011,4294911614,131007,17179754056, 256447,68719255132,519139] |