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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 127 |
| 2 | 3025 |
| 3 | 28911 |
| 4 | 162417 |
| 5 | 652431 |
| 6 | 2086241 |
| 7 | 5659295 |
| 8 | 13561889 |
| 9 | 29504095 |
| 10 | 59400241 |
| 11 | 112234255 |
| 12 | 201127185 |
| 13 | 344628207 |
| 14 | 568250433 |
| 15 | 906272831 |
| 16 | 1403829569 |
| 17 | 2119308095 |
| 18 | 3127077265 |
| 19 | 4520566831 |
| 20 | 6415719601 |
| 21 | 8954837583 |
| 22 | 12310843425 |
| 23 | 16691978463 |
| 24 | 22346958689 |
| 25 | 29570609951 |
[1,127,3025,28911,162417,652431,2086241,5659295, 13561889,29504095,59400241,112234255,201127185, 344628207,568250433,906272831,1403829569, 2119308095,3127077265,4520566831,6415719601, 8954837583,12310843425,16691978463,22346958689, 29570609951] |