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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 12 |
| 3 | 36 |
| 4 | 80 |
| 5 | 150 |
| 6 | 252 |
| 7 | 392 |
| 8 | 576 |
| 9 | 810 |
| 10 | 1100 |
| 11 | 1452 |
| 12 | 1872 |
| 13 | 2366 |
| 14 | 2940 |
| 15 | 3600 |
| 16 | 4352 |
| 17 | 5202 |
| 18 | 6156 |
| 19 | 7220 |
| 20 | 8400 |
| 21 | 9702 |
| 22 | 11132 |
| 23 | 12696 |
| 24 | 14400 |
| 25 | 16250 |
| 26 | 18252 |
| 27 | 20412 |
| 28 | 22736 |
| 29 | 25230 |
| 30 | 27900 |
| 31 | 30752 |
| 32 | 33792 |
| 33 | 37026 |
| 34 | 40460 |
| 35 | 44100 |
| 36 | 47952 |
| 37 | 52022 |
| 38 | 56316 |
| 39 | 60840 |
[0,2,12,36,80,150,252,392,576,810,1100,1452,1872, 2366,2940,3600,4352,5202,6156,7220,8400,9702, 11132,12696,14400,16250,18252,20412,22736,25230, 27900,30752,33792,37026,40460,44100,47952,52022, 56316,60840] |