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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 3 |
| 5 | 6 |
| 6 | 12 |
| 7 | 24 |
| 8 | 46 |
| 9 | 87 |
| 10 | 163 |
| 11 | 303 |
| 12 | 561 |
| 13 | 1036 |
| 14 | 1910 |
| 15 | 3518 |
| 16 | 6476 |
| 17 | 11917 |
| 18 | 21925 |
| 19 | 40333 |
| 20 | 74191 |
| 21 | 136466 |
| 22 | 251008 |
| 23 | 461684 |
| 24 | 849178 |
| 25 | 1561891 |
| 26 | 2872775 |
| 27 | 5283867 |
| 28 | 9718557 |
| 29 | 17875224 |
| 30 | 32877674 |
| 31 | 60471482 |
| 32 | 111224408 |
| 33 | 204573593 |
| 34 | 376269513 |
| 35 | 692067545 |
[1,1,1,3,6,12,24,46,87,163,303,561,1036,1910,3518, 6476,11917,21925,40333,74191,136466,251008,461684, 849178,1561891,2872775,5283867,9718557,17875224, 32877674,60471482,111224408,204573593,376269513, 692067545] |