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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 385 |
| 3 | 1001 |
| 4 | 5005 |
| 5 | 85085 |
| 6 | 323323 |
| 7 | 7436429 |
| 8 | 955049953 |
| 9 | 183698727318433150098859517 |
| 10 | 35336848261 |
| 11 | 435656388001 |
| 12 | 3868985835982814590518552822749329543261 |
| 13 | 1448810778701 |
| 14 | 20475850236047 |
| 15 | 5663533044013 |
| 16 | 343523383391078124677551786579090220816600929 |
| 17 | 62298863484143 |
[15,385,1001,5005,85085,323323,7436429,955049953, 183698727318433150098859517,35336848261, 435656388001, 3868985835982814590518552822749329543261, 1448810778701,20475850236047,5663533044013, 343523383391078124677551786579090220816600929, 62298863484143] |