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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 7 |
| 3 | 12 |
| 4 | 24 |
| 5 | 121 |
| 6 | 337 |
| 7 | 512 |
| 8 | 722 |
| 9 | 840 |
| 10 | 4704 |
| 11 | 4900 |
| 12 | 23762 |
| 13 | 28560 |
| 14 | 29767 |
| 15 | 166464 |
| 16 | 235224 |
| 17 | 647149 |
| 18 | 970224 |
| 19 | 1940449 |
| 20 | 4920547 |
| 21 | 14070000 |
| 22 | 20346212 |
| 23 | 32959080 |
| 24 | 42508287 |
| 25 | 79346175 |
| 26 | 307546368 |
| 27 | 319311720 |
| 28 | 450982499 |
| 29 | 491756160 |
| 30 | 921166587 |
[1,7,12,24,121,337,512,722,840,4704,4900,23762, 28560,29767,166464,235224,647149,970224,1940449, 4920547,14070000,20346212,32959080,42508287, 79346175,307546368,319311720,450982499,491756160, 921166587] |