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| n | a(n) |
|---|---|
| 1 | 12 |
| 2 | 159 |
| 3 | 804 |
| 4 | 2670 |
| 5 | 6960 |
| 6 | 15477 |
| 7 | 30744 |
| 8 | 56124 |
| 9 | 95940 |
| 10 | 155595 |
| 11 | 241692 |
| 12 | 362154 |
| 13 | 526344 |
| 14 | 745185 |
| 15 | 1031280 |
| 16 | 1399032 |
| 17 | 1864764 |
| 18 | 2446839 |
| 19 | 3165780 |
| 20 | 4044390 |
| 21 | 5107872 |
| 22 | 6383949 |
| 23 | 7902984 |
| 24 | 9698100 |
| 25 | 11805300 |
| 26 | 14263587 |
| 27 | 17115084 |
| 28 | 20405154 |
| 29 | 24182520 |
[12,159,804,2670,6960,15477,30744,56124,95940, 155595,241692,362154,526344,745185,1031280, 1399032,1864764,2446839,3165780,4044390,5107872, 6383949,7902984,9698100,11805300,14263587, 17115084,20405154,24182520] |