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| n | a(n) |
|---|---|
| 1 | 12260 |
| 2 | 39661 |
| 3 | 129677 |
| 4 | 388056 |
| 5 | 1194944 |
| 6 | 3557566 |
| 7 | 10792398 |
| 8 | 31935630 |
| 9 | 94243724 |
| 10 | 273661647 |
| 11 | 792918304 |
| 12 | 2285081398 |
| 13 | 6585392329 |
| 14 | 18959530683 |
| 15 | 54620617680 |
| 16 | 157367672295 |
| 17 | 453569621698 |
| 18 | 1307460827102 |
| 19 | 3769569531795 |
| 20 | 10868903441473 |
[12260,39661,129677,388056,1194944,3557566, 10792398,31935630,94243724,273661647,792918304, 2285081398,6585392329,18959530683,54620617680, 157367672295,453569621698,1307460827102, 3769569531795,10868903441473] |