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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 2 |
| 2 | 22 |
| 3 | 47 |
| 4 | 422 |
| 5 | 1047 |
| 6 | 13547 |
| 7 | 29172 |
| 8 | 341672 |
| 9 | 732297 |
| 10 | 732297 |
| 11 | 30029172 |
| 12 | 127685422 |
| 13 | 860107297 |
| 14 | 4522216672 |
| 15 | 10625732297 |
| 16 | 41143310422 |
| 17 | 498906982297 |
| 18 | 1261846435422 |
| 19 | 5076543701047 |
| 20 | 62297002685422 |
| 21 | 348399297607297 |
| 22 | 1778910772216672 |
| 23 | 8931468145263547 |
| 24 | 20852397100341672 |
[0,2,22,47,422,1047,13547,29172,341672,732297, 732297,30029172,127685422,860107297,4522216672, 10625732297,41143310422,498906982297, 1261846435422,5076543701047,62297002685422, 348399297607297,1778910772216672,8931468145263547, 20852397100341672] |