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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 3 |
| 4 | 7 |
| 5 | 12 |
| 6 | 29 |
| 7 | 53 |
| 8 | 130 |
| 9 | 247 |
| 10 | 611 |
| 11 | 1192 |
| 12 | 2965 |
| 13 | 5897 |
| 14 | 14726 |
| 15 | 29723 |
| 16 | 74443 |
| 17 | 152020 |
| 18 | 381617 |
| 19 | 786733 |
| 20 | 1978582 |
| 21 | 4111295 |
| 22 | 10355303 |
| 23 | 21661168 |
| 24 | 54628201 |
| 25 | 114925697 |
| 26 | 290148890 |
| 27 | 613442227 |
| 28 | 1550177791 |
| 29 | 3291704108 |
| 30 | 8324934533 |
| 31 | 17745496453 |
[1,1,2,3,7,12,29,53,130,247,611,1192,2965,5897, 14726,29723,74443,152020,381617,786733,1978582, 4111295,10355303,21661168,54628201,114925697, 290148890,613442227,1550177791,3291704108, 8324934533,17745496453] |