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| n | a(n) |
|---|---|
| 1 | 1802 |
| 2 | 3185 |
| 3 | 9794 |
| 4 | 26744 |
| 5 | 96174 |
| 6 | 314753 |
| 7 | 916706 |
| 8 | 3355456 |
| 9 | 11123034 |
| 10 | 32742110 |
| 11 | 120563173 |
| 12 | 402117190 |
| 13 | 1187329749 |
| 14 | 4381126617 |
| 15 | 14653518344 |
| 16 | 43323504105 |
| 17 | 160002531150 |
| 18 | 535852917600 |
| 19 | 1585231565872 |
| 20 | 5857127789064 |
| 21 | 19627810957386 |
[1802,3185,9794,26744,96174,314753,916706,3355456, 11123034,32742110,120563173,402117190,1187329749, 4381126617,14653518344,43323504105,160002531150, 535852917600,1585231565872,5857127789064, 19627810957386] |