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| n | a(n) |
|---|---|
| 1 | 136 |
| 2 | 3185 |
| 3 | 30882 |
| 4 | 180069 |
| 5 | 759084 |
| 6 | 2556917 |
| 7 | 7303048 |
| 8 | 18382689 |
| 9 | 41883774 |
| 10 | 88029351 |
| 11 | 173063726 |
| 12 | 321693183 |
| 13 | 570089840 |
| 14 | 969551427 |
| 15 | 1590970704 |
| 16 | 2530011331 |
| 17 | 3913099856 |
| 18 | 5904594753 |
| 19 | 8714661346 |
| 20 | 12608284547 |
| 21 | 17915736648 |
| 22 | 25043801479 |
[136,3185,30882,180069,759084,2556917,7303048, 18382689,41883774,88029351,173063726,321693183, 570089840,969551427,1590970704,2530011331, 3913099856,5904594753,8714661346,12608284547, 17915736648,25043801479] |