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A301326 as a simple table
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 10 |
| 3 | 18 |
| 4 | 45 |
| 5 | 143 |
| 6 | 414 |
| 7 | 1481 |
| 8 | 5062 |
| 9 | 17879 |
| 10 | 62112 |
| 11 | 217402 |
| 12 | 764860 |
| 13 | 2687915 |
| 14 | 9462966 |
| 15 | 33320851 |
| 16 | 117384939 |
| 17 | 413427418 |
| 18 | 1456413781 |
| 19 | 5131048829 |
| 20 | 18077067261 |
| 21 | 63688856231 |
| 22 | 224392218311 |
| 23 | 790594491334 |
| 24 | 2785479832548 |
| 25 | 9814065517891 |
[1,10,18,45,143,414,1481,5062,17879,62112,217402, 764860,2687915,9462966,33320851,117384939, 413427418,1456413781,5131048829,18077067261, 63688856231,224392218311,790594491334, 2785479832548,9814065517891] |