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| n | a(n) |
|---|---|
| 1 | 53 |
| 2 | 272 |
| 3 | 1342 |
| 4 | 4619 |
| 5 | 14541 |
| 6 | 34786 |
| 7 | 113891 |
| 8 | 233392 |
| 9 | 525617 |
| 10 | 853971 |
| 11 | 2327441 |
| 12 | 3609337 |
| 13 | 6243433 |
| 14 | 8189113 |
| 15 | 18881723 |
| 16 | 25291483 |
| 17 | 37714007 |
| 18 | 44777219 |
| 19 | 90840301 |
| 20 | 112309445 |
| 21 | 153843349 |
| 22 | 173399285 |
| 23 | 320621751 |
| 24 | 377531207 |
| 25 | 490093227 |
| 26 | 535756183 |
[53,272,1342,4619,14541,34786,113891,233392, 525617,853971,2327441,3609337,6243433,8189113, 18881723,25291483,37714007,44777219,90840301, 112309445,153843349,173399285,320621751,377531207, 490093227,535756183] |