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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 50 |
| 3 | 363 |
| 4 | 1360 |
| 5 | 3665 |
| 6 | 8106 |
| 7 | 15715 |
| 8 | 27728 |
| 9 | 45585 |
| 10 | 70930 |
| 11 | 105611 |
| 12 | 151680 |
| 13 | 211393 |
| 14 | 287210 |
| 15 | 381795 |
| 16 | 498016 |
| 17 | 638945 |
| 18 | 807858 |
| 19 | 1008235 |
| 20 | 1243760 |
| 21 | 1518321 |
| 22 | 1836010 |
| 23 | 2201123 |
| 24 | 2618160 |
| 25 | 3091825 |
| 26 | 3627026 |
| 27 | 4228875 |
| 28 | 4902688 |
| 29 | 5653985 |
| 30 | 6488490 |
| 31 | 7412131 |
| 32 | 8431040 |
| 33 | 9551553 |
| 34 | 10780210 |
| 35 | 12123755 |
| 36 | 13589136 |
| 37 | 15183505 |
| 38 | 16914218 |
| 39 | 18788835 |
[1,50,363,1360,3665,8106,15715,27728,45585,70930, 105611,151680,211393,287210,381795,498016,638945, 807858,1008235,1243760,1518321,1836010,2201123, 2618160,3091825,3627026,4228875,4902688,5653985, 6488490,7412131,8431040,9551553,10780210,12123755, 13589136,15183505,16914218,18788835] |