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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 69 |
| 3 | 505 |
| 4 | 2177 |
| 5 | 10241 |
| 6 | 24635 |
| 7 | 65875 |
| 8 | 120631 |
| 9 | 244789 |
| 10 | 531715 |
| 11 | 802063 |
| 12 | 1464941 |
| 13 | 2279887 |
| 14 | 3065943 |
| 15 | 4444273 |
| 16 | 6747695 |
| 17 | 9882205 |
| 18 | 12447843 |
| 19 | 17304961 |
| 20 | 22371177 |
| 21 | 26991677 |
| 22 | 35679165 |
| 23 | 44240245 |
| 24 | 56968633 |
| 25 | 75590451 |
| 26 | 91181689 |
| 27 | 104420885 |
| 28 | 124020811 |
| 29 | 141249939 |
| 30 | 164746655 |
[10,69,505,2177,10241,24635,65875,120631,244789, 531715,802063,1464941,2279887,3065943,4444273, 6747695,9882205,12447843,17304961,22371177, 26991677,35679165,44240245,56968633,75590451, 91181689,104420885,124020811,141249939,164746655] |