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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 18 |
| 4 | 48 |
| 5 | 114 |
| 6 | 414 |
| 7 | 546 |
| 8 | 627 |
| 9 | 927 |
| 10 | 1023 |
| 11 | 1836 |
| 12 | 3090 |
| 13 | 4167 |
| 14 | 7539 |
| 15 | 7752 |
| 16 | 7884 |
| 17 | 7950 |
| 18 | 8250 |
| 19 | 9093 |
| 20 | 9621 |
| 21 | 9870 |
| 22 | 10779 |
| 23 | 11226 |
| 24 | 11622 |
| 25 | 11886 |
| 26 | 12363 |
| 27 | 12465 |
| 28 | 14994 |
| 29 | 16152 |
| 30 | 17391 |
| 31 | 19656 |
| 32 | 20169 |
| 33 | 20499 |
| 34 | 22383 |
| 35 | 23937 |
| 36 | 25359 |
| 37 | 25623 |
| 38 | 26532 |
| 39 | 26847 |
| 40 | 27045 |
| 41 | 27492 |
| 42 | 28731 |
| 43 | 31641 |
| 44 | 31707 |
[3,6,18,48,114,414,546,627,927,1023,1836,3090, 4167,7539,7752,7884,7950,8250,9093,9621,9870, 10779,11226,11622,11886,12363,12465,14994,16152, 17391,19656,20169,20499,22383,23937,25359,25623, 26532,26847,27045,27492,28731,31641,31707] |