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| n | a(n) |
|---|---|
| 1 | 334 |
| 2 | 9106 |
| 3 | 87892 |
| 4 | 489135 |
| 5 | 1954106 |
| 6 | 6255136 |
| 7 | 17080712 |
| 8 | 41376909 |
| 9 | 91273510 |
| 10 | 186738046 |
| 11 | 359115868 |
| 12 | 655729243 |
| 13 | 1145723346 |
| 14 | 1927361900 |
| 15 | 3136990096 |
| 16 | 4959897305 |
| 17 | 7643326974 |
| 18 | 11511895978 |
| 19 | 16985700580 |
| 20 | 24601401031 |
| 21 | 35036591722 |
[334,9106,87892,489135,1954106,6255136,17080712, 41376909,91273510,186738046,359115868,655729243, 1145723346,1927361900,3136990096,4959897305, 7643326974,11511895978,16985700580,24601401031, 35036591722] |