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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 38 |
| 2 | 384 |
| 3 | 1614 |
| 4 | 4592 |
| 5 | 10506 |
| 6 | 20828 |
| 7 | 37358 |
| 8 | 62132 |
| 9 | 97574 |
| 10 | 146308 |
| 11 | 211418 |
| 12 | 296032 |
| 13 | 403918 |
| 14 | 538784 |
| 15 | 704918 |
| 16 | 906720 |
| 17 | 1149162 |
| 18 | 1437036 |
| 19 | 1776038 |
| 20 | 2171556 |
| 21 | 2629790 |
| 22 | 3156924 |
| 23 | 3759698 |
| 24 | 4444648 |
| 25 | 5219390 |
| 26 | 6091008 |
| 27 | 7067614 |
| 28 | 8157088 |
| 29 | 9368178 |
[0,38,384,1614,4592,10506,20828,37358,62132,97574, 146308,211418,296032,403918,538784,704918,906720, 1149162,1437036,1776038,2171556,2629790,3156924, 3759698,4444648,5219390,6091008,7067614,8157088, 9368178] |