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| n | a(n) |
|---|---|
| 1 | 2440 |
| 2 | 6339 |
| 3 | 19970 |
| 4 | 60741 |
| 5 | 129378 |
| 6 | 265117 |
| 7 | 517697 |
| 8 | 920743 |
| 9 | 1570681 |
| 10 | 2618604 |
| 11 | 4231022 |
| 12 | 6636278 |
| 13 | 10253068 |
| 14 | 15585443 |
| 15 | 23416148 |
| 16 | 34730393 |
| 17 | 51160002 |
| 18 | 74729961 |
| 19 | 108671350 |
| 20 | 156842600 |
| 21 | 225956004 |
| 22 | 324026686 |
| 23 | 464035121 |
| 24 | 661461991 |
| 25 | 943337179 |
[2440,6339,19970,60741,129378,265117,517697, 920743,1570681,2618604,4231022,6636278,10253068, 15585443,23416148,34730393,51160002,74729961, 108671350,156842600,225956004,324026686,464035121, 661461991,943337179] |