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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 144 |
| 3 | 922 |
| 4 | 3481 |
| 5 | 9904 |
| 6 | 23400 |
| 7 | 48491 |
| 8 | 92478 |
| 9 | 162599 |
| 10 | 270267 |
| 11 | 430274 |
| 12 | 655974 |
| 13 | 965098 |
| 14 | 1390174 |
| 15 | 1947527 |
| 16 | 2667906 |
| 17 | 3590889 |
| 18 | 4753865 |
| 19 | 6198717 |
| 20 | 7979654 |
| 21 | 10128692 |
| 22 | 12732119 |
| 23 | 15867500 |
| 24 | 19571053 |
| 25 | 23904927 |
| 26 | 29021539 |
| 27 | 34967650 |
| 28 | 41839570 |
| 29 | 49768153 |
[12,144,922,3481,9904,23400,48491,92478,162599, 270267,430274,655974,965098,1390174,1947527, 2667906,3590889,4753865,6198717,7979654,10128692, 12732119,15867500,19571053,23904927,29021539, 34967650,41839570,49768153] |