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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 82 |
| 3 | 707 |
| 4 | 3108 |
| 5 | 9669 |
| 6 | 24310 |
| 7 | 52871 |
| 8 | 103496 |
| 9 | 187017 |
| 10 | 317338 |
| 11 | 511819 |
| 12 | 791660 |
| 13 | 1182285 |
| 14 | 1713726 |
| 15 | 2421007 |
| 16 | 3344528 |
| 17 | 4530449 |
| 18 | 6031074 |
| 19 | 7905235 |
| 20 | 10218676 |
| 21 | 13044437 |
| 22 | 16463238 |
| 23 | 20563863 |
| 24 | 25443544 |
| 25 | 31208345 |
| 26 | 37973546 |
| 27 | 45864027 |
| 28 | 55014652 |
| 29 | 65570653 |
| 30 | 77688014 |
[1,82,707,3108,9669,24310,52871,103496,187017, 317338,511819,791660,1182285,1713726,2421007, 3344528,4530449,6031074,7905235,10218676,13044437, 16463238,20563863,25443544,31208345,37973546, 45864027,55014652,65570653,77688014] |