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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 1 |
| 3 | 10 |
| 4 | 51 |
| 5 | 265 |
| 6 | 1376 |
| 7 | 7145 |
| 8 | 37101 |
| 9 | 192650 |
| 10 | 1000351 |
| 11 | 5194405 |
| 12 | 26972376 |
| 13 | 140056285 |
| 14 | 727253801 |
| 15 | 3776325290 |
| 16 | 19608880251 |
| 17 | 101820726545 |
| 18 | 528712512976 |
| 19 | 2745383291425 |
| 20 | 14255628970101 |
| 21 | 74023528141930 |
| 22 | 384373269679751 |
| 23 | 1995889876540685 |
| 24 | 10363822652383176 |
[5,1,10,51,265,1376,7145,37101,192650,1000351, 5194405,26972376,140056285,727253801,3776325290, 19608880251,101820726545,528712512976, 2745383291425,14255628970101,74023528141930, 384373269679751,1995889876540685, 10363822652383176] |