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| n | a(n) |
|---|---|
| 0 | 290 |
| 1 | 835 |
| 2 | 1610 |
| 3 | 4195 |
| 4 | 17060 |
| 5 | 23845 |
| 6 | 46490 |
| 7 | 89080 |
| 8 | 138125 |
| 9 | 255775 |
| 10 | 506510 |
| 11 | 1238395 |
| 12 | 5127260 |
| 13 | 8616205 |
| 14 | 15984335 |
| 15 | 31949470 |
| 16 | 79793675 |
| 17 | 315404860 |
| 18 | 569392925 |
| 19 | 1060061935 |
| 20 | 2114961710 |
| 21 | 5206421995 |
| 22 | 20997654620 |
| 23 | 35262166285 |
[290,835,1610,4195,17060,23845,46490,89080,138125, 255775,506510,1238395,5127260,8616205,15984335, 31949470,79793675,315404860,569392925,1060061935, 2114961710,5206421995,20997654620,35262166285] |