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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 3 |
| 3 | 5 |
| 4 | 19 |
| 5 | 39 |
| 6 | 165 |
| 7 | 377 |
| 8 | 1675 |
| 9 | 4079 |
| 10 | 18529 |
| 11 | 47035 |
| 12 | 217047 |
| 13 | 567995 |
| 14 | 2653997 |
| 15 | 7110249 |
| 16 | 33549099 |
| 17 | 91566215 |
| 18 | 435189965 |
| 19 | 1205660275 |
| 20 | 5762040619 |
| 21 | 16160773167 |
| 22 | 77582569441 |
| 23 | 219855469855 |
| 24 | 1059452349945 |
| 25 | 3028920948749 |
| 26 | 14642669770195 |
| 27 | 42182989681607 |
| 28 | 204475691133925 |
| 29 | 592984713437089 |
| 30 | 2881020864061569 |
[1,1,3,5,19,39,165,377,1675,4079,18529,47035, 217047,567995,2653997,7110249,33549099,91566215, 435189965,1205660275,5762040619,16160773167, 77582569441,219855469855,1059452349945, 3028920948749,14642669770195,42182989681607, 204475691133925,592984713437089,2881020864061569] |