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| n | a(n) |
|---|---|
| 1 | 14 |
| 2 | 46 |
| 3 | 163 |
| 4 | 602 |
| 5 | 2271 |
| 6 | 8655 |
| 7 | 33148 |
| 8 | 127255 |
| 9 | 489084 |
| 10 | 1880732 |
| 11 | 7234069 |
| 12 | 27828644 |
| 13 | 107059965 |
| 14 | 411883517 |
| 15 | 1584628966 |
| 16 | 6096542009 |
| 17 | 23455294538 |
| 18 | 90239951178 |
| 19 | 347181934423 |
| 20 | 1335720317278 |
| 21 | 5138945540059 |
| 22 | 19771177361419 |
| 23 | 76066085076416 |
[14,46,163,602,2271,8655,33148,127255,489084, 1880732,7234069,27828644,107059965,411883517, 1584628966,6096542009,23455294538,90239951178, 347181934423,1335720317278,5138945540059, 19771177361419,76066085076416] |