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| n | a(n) |
|---|---|
| 1 | 930 |
| 2 | 4350 |
| 3 | 20518 |
| 4 | 96866 |
| 5 | 457366 |
| 6 | 2160160 |
| 7 | 10203222 |
| 8 | 48194820 |
| 9 | 227649458 |
| 10 | 1075313612 |
| 11 | 5079307270 |
| 12 | 23992431544 |
| 13 | 113329814408 |
| 14 | 535320858558 |
| 15 | 2528623566912 |
| 16 | 11944121511580 |
| 17 | 56418852770150 |
| 18 | 266498206863362 |
[930,4350,20518,96866,457366,2160160,10203222, 48194820,227649458,1075313612,5079307270, 23992431544,113329814408,535320858558, 2528623566912,11944121511580,56418852770150, 266498206863362] |