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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 3 |
| 3 | 7 |
| 4 | 20 |
| 5 | 32 |
| 6 | 68 |
| 7 | 191 |
| 8 | 504 |
| 9 | 1353 |
| 10 | 4033 |
| 11 | 11685 |
| 12 | 33861 |
| 13 | 98728 |
| 14 | 286160 |
| 15 | 829255 |
| 16 | 2405240 |
| 17 | 6971387 |
| 18 | 20210591 |
| 19 | 58596872 |
| 20 | 169882747 |
| 21 | 492538787 |
| 22 | 1428005265 |
| 23 | 4140151175 |
| 24 | 12003425671 |
| 25 | 34801083823 |
| 26 | 100897399130 |
| 27 | 292528300568 |
[5,3,7,20,32,68,191,504,1353,4033,11685,33861, 98728,286160,829255,2405240,6971387,20210591, 58596872,169882747,492538787,1428005265, 4140151175,12003425671,34801083823,100897399130, 292528300568] |