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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 14 |
| 4 | 23 |
| 5 | 55 |
| 6 | 80 |
| 7 | 104 |
| 8 | 286 |
| 9 | 335 |
| 10 | 383 |
| 11 | 809 |
| 12 | 1664 |
| 13 | 2096 |
| 14 | 2624 |
| 15 | 4262 |
| 16 | 13544 |
| 17 | 14249 |
| 18 | 19886 |
| 19 | 35500 |
| 20 | 40591 |
| 21 | 42920 |
| 22 | 50839 |
| 23 | 56696 |
| 24 | 114505 |
[2,4,14,23,55,80,104,286,335,383,809,1664,2096, 2624,4262,13544,14249,19886,35500,40591,42920, 50839,56696,114505] |