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| n | a(n) |
|---|---|
| 1 | 2637 |
| 2 | 7610 |
| 3 | 34532 |
| 4 | 88844 |
| 5 | 498696 |
| 6 | 2538669 |
| 7 | 6590930 |
| 8 | 37656158 |
| 9 | 199331443 |
| 10 | 514906002 |
| 11 | 2994563004 |
| 12 | 16370844276 |
| 13 | 42106677118 |
| 14 | 248304737187 |
| 15 | 1390789570131 |
| 16 | 3565907298743 |
| 17 | 21240150477364 |
| 18 | 121018033333627 |
| 19 | 309607017470686 |
[2637,7610,34532,88844,498696,2538669,6590930, 37656158,199331443,514906002,2994563004, 16370844276,42106677118,248304737187, 1390789570131,3565907298743,21240150477364, 121018033333627,309607017470686] |