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| n | a(n) |
|---|---|
| 1 | 54530 |
| 2 | 135254 |
| 3 | 345280 |
| 4 | 937034 |
| 5 | 2613410 |
| 6 | 7614452 |
| 7 | 22754394 |
| 8 | 70442910 |
| 9 | 223243440 |
| 10 | 729220586 |
| 11 | 2434648618 |
| 12 | 8347808524 |
| 13 | 29216007122 |
| 14 | 104694635214 |
| 15 | 382384146184 |
| 16 | 1425884641650 |
| 17 | 5409095808786 |
| 18 | 20886702277500 |
| 19 | 81856766900850 |
[54530,135254,345280,937034,2613410,7614452, 22754394,70442910,223243440,729220586,2434648618, 8347808524,29216007122,104694635214,382384146184, 1425884641650,5409095808786,20886702277500, 81856766900850] |