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| n | a(n) |
|---|---|
| 1 | 205 |
| 2 | 471 |
| 3 | 1723 |
| 4 | 5034 |
| 5 | 15502 |
| 6 | 51552 |
| 7 | 161176 |
| 8 | 500384 |
| 9 | 1604536 |
| 10 | 5086798 |
| 11 | 15970826 |
| 12 | 50628404 |
| 13 | 160518794 |
| 14 | 506646020 |
| 15 | 1602247622 |
| 16 | 5073114544 |
| 17 | 16039699386 |
| 18 | 50717541826 |
| 19 | 160468331560 |
| 20 | 507552451076 |
| 21 | 1605133576768 |
| 22 | 5077305382754 |
[205,471,1723,5034,15502,51552,161176,500384, 1604536,5086798,15970826,50628404,160518794, 506646020,1602247622,5073114544,16039699386, 50717541826,160468331560,507552451076, 1605133576768,5077305382754] |