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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 8 |
| 4 | 42 |
| 5 | 50 |
| 6 | 62 |
| 7 | 362 |
| 8 | 488 |
| 9 | 642 |
| 10 | 846 |
| 11 | 2870 |
| 12 | 3042 |
| 13 | 5096 |
| 14 | 10556 |
| 15 | 12642 |
| 16 | 17850 |
| 17 | 21710 |
| 18 | 25230 |
| 19 | 30392 |
| 20 | 43122 |
| 21 | 206970 |
| 22 | 582078 |
[2,6,8,42,50,62,362,488,642,846,2870,3042,5096, 10556,12642,17850,21710,25230,30392,43122,206970, 582078] |