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| n | a(n) |
|---|---|
| 1 | 56 |
| 2 | 957 |
| 3 | 6820 |
| 4 | 30315 |
| 5 | 100894 |
| 6 | 277101 |
| 7 | 654644 |
| 8 | 1397115 |
| 9 | 2729346 |
| 10 | 5000775 |
| 11 | 8646710 |
| 12 | 14320677 |
| 13 | 22753218 |
| 14 | 35050107 |
| 15 | 52358558 |
| 16 | 76391397 |
| 17 | 108844088 |
| 18 | 152265601 |
| 19 | 208998994 |
| 20 | 282689603 |
| 21 | 376505412 |
| 22 | 495411841 |
| 23 | 643581780 |
| 24 | 827671511 |
| 25 | 1052928232 |
[56,957,6820,30315,100894,277101,654644,1397115, 2729346,5000775,8646710,14320677,22753218, 35050107,52358558,76391397,108844088,152265601, 208998994,282689603,376505412,495411841,643581780, 827671511,1052928232] |