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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 120 |
| 3 | 4095 |
| 4 | 36046 |
| 5 | 147153 |
| 6 | 219453 |
| 7 | 1021735 |
| 8 | 1053426 |
| 9 | 104653 |
| 10 | 10149765 |
| 11 | 10294453 |
| 12 | 10348975 |
| 13 | 100486576 |
| 14 | 10725396 |
| 15 | 103428153 |
| 16 | 20759346 |
| 17 | 12347965 |
| 18 | 100174935 |
| 19 | 129548656 |
| 20 | 102968425 |
| 21 | 104697685 |
| 22 | 102925378 |
| 23 | 160249753 |
| 24 | 123865930 |
| 25 | 126047503 |
| 26 | 102538360 |
| 27 | 224073865 |
[0,120,4095,36046,147153,219453,1021735,1053426, 104653,10149765,10294453,10348975,100486576, 10725396,103428153,20759346,12347965,100174935, 129548656,102968425,104697685,102925378,160249753, 123865930,126047503,102538360,224073865] |