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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 100 |
| 3 | 378 |
| 4 | 1377 |
| 5 | 4823 |
| 6 | 17119 |
| 7 | 61292 |
| 8 | 218243 |
| 9 | 776100 |
| 10 | 2765576 |
| 11 | 9852117 |
| 12 | 35078967 |
| 13 | 124935587 |
| 14 | 444991022 |
| 15 | 1584772385 |
| 16 | 5644067960 |
| 17 | 20101607046 |
| 18 | 71591508557 |
| 19 | 254970749655 |
| 20 | 908076480129 |
| 21 | 3234105068568 |
| 22 | 11518206999371 |
| 23 | 41021924800776 |
[10,100,378,1377,4823,17119,61292,218243,776100, 2765576,9852117,35078967,124935587,444991022, 1584772385,5644067960,20101607046,71591508557, 254970749655,908076480129,3234105068568, 11518206999371,41021924800776] |