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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 6 |
| 4 | 36 |
| 5 | 62 |
| 6 | 130 |
| 7 | 377 |
| 8 | 621 |
| 9 | 1022 |
| 10 | 2068 |
| 11 | 3133 |
| 12 | 4728 |
| 13 | 7183 |
| 14 | 11271 |
| 15 | 17453 |
| 16 | 25246 |
| 17 | 37047 |
| 18 | 53382 |
| 19 | 83321 |
| 20 | 117518 |
| 21 | 167979 |
| 22 | 238923 |
| 23 | 339650 |
| 24 | 481615 |
| 25 | 683160 |
| 26 | 982182 |
| 27 | 1389733 |
| 28 | 1970191 |
| 29 | 2788008 |
| 30 | 3946477 |
| 31 | 5591147 |
| 32 | 7907444 |
| 33 | 11188660 |
| 34 | 15825176 |
[1,2,6,36,62,130,377,621,1022,2068,3133,4728,7183, 11271,17453,25246,37047,53382,83321,117518,167979, 238923,339650,481615,683160,982182,1389733, 1970191,2788008,3946477,5591147,7907444,11188660, 15825176] |