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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 8 |
| 4 | 12 |
| 5 | 31 |
| 6 | 56 |
| 7 | 107 |
| 8 | 168 |
| 9 | 372 |
| 10 | 620 |
| 11 | 1032 |
| 12 | 1819 |
| 13 | 2888 |
| 14 | 5228 |
| 15 | 8821 |
| 16 | 13692 |
| 17 | 21764 |
| 18 | 36528 |
| 19 | 54756 |
| 20 | 92384 |
| 21 | 145180 |
| 22 | 222809 |
| 23 | 339596 |
| 24 | 524468 |
| 25 | 803716 |
| 26 | 1204461 |
| 27 | 1884224 |
| 28 | 2844820 |
| 29 | 4202784 |
| 30 | 6291608 |
| 31 | 9287236 |
| 32 | 13623388 |
| 33 | 20316140 |
| 34 | 29251828 |
| 35 | 43892909 |
| 36 | 64068484 |
| 37 | 92248760 |
[1,1,3,8,12,31,56,107,168,372,620,1032,1819,2888, 5228,8821,13692,21764,36528,54756,92384,145180, 222809,339596,524468,803716,1204461,1884224, 2844820,4202784,6291608,9287236,13623388,20316140, 29251828,43892909,64068484,92248760] |