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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 16 |
| 4 | 47 |
| 5 | 147 |
| 6 | 386 |
| 7 | 1065 |
| 8 | 3063 |
| 9 | 8624 |
| 10 | 24219 |
| 11 | 68527 |
| 12 | 193946 |
| 13 | 547869 |
| 14 | 1548531 |
| 15 | 4380048 |
| 16 | 12385479 |
| 17 | 35018011 |
| 18 | 99025330 |
| 19 | 280031137 |
| 20 | 791849343 |
| 21 | 2239169200 |
| 22 | 6331964803 |
| 23 | 17905479095 |
| 24 | 50632882698 |
| 25 | 143179634869 |
| 26 | 404883140379 |
[1,11,16,47,147,386,1065,3063,8624,24219,68527, 193946,547869,1548531,4380048,12385479,35018011, 99025330,280031137,791849343,2239169200, 6331964803,17905479095,50632882698,143179634869, 404883140379] |