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| n | a(n) |
|---|---|
| 1 | 10 |
| 2 | 10 |
| 3 | 71 |
| 4 | 255 |
| 5 | 958 |
| 6 | 3227 |
| 7 | 10448 |
| 8 | 33171 |
| 9 | 104257 |
| 10 | 321192 |
| 11 | 959643 |
| 12 | 2767836 |
| 13 | 7715074 |
| 14 | 20859416 |
| 15 | 54913599 |
| 16 | 141165961 |
| 17 | 355043898 |
| 18 | 874744299 |
| 19 | 2113163842 |
| 20 | 5009479264 |
| 21 | 11662623744 |
| 22 | 26685113308 |
| 23 | 60050975462 |
| 24 | 132996270802 |
| 25 | 290066663758 |
[10,10,71,255,958,3227,10448,33171,104257,321192, 959643,2767836,7715074,20859416,54913599, 141165961,355043898,874744299,2113163842, 5009479264,11662623744,26685113308,60050975462, 132996270802,290066663758] |