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| n | a(n) |
|---|---|
| 1 | 256 |
| 2 | 9205 |
| 3 | 119317 |
| 4 | 866944 |
| 5 | 4373134 |
| 6 | 16987236 |
| 7 | 54817908 |
| 8 | 153203700 |
| 9 | 382427902 |
| 10 | 870816931 |
| 11 | 1838833115 |
| 12 | 3646368028 |
| 13 | 6856114327 |
| 14 | 12312181791 |
| 15 | 21251285131 |
| 16 | 35433012016 |
| 17 | 57295925135 |
| 18 | 90169126459 |
| 19 | 138505569304 |
| 20 | 208154690963 |
[256,9205,119317,866944,4373134,16987236,54817908, 153203700,382427902,870816931,1838833115, 3646368028,6856114327,12312181791,21251285131, 35433012016,57295925135,90169126459,138505569304, 208154690963] |