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| n | a(n) |
|---|---|
| 1 | 145 |
| 2 | 397 |
| 3 | 945 |
| 4 | 2153 |
| 5 | 4775 |
| 6 | 10527 |
| 7 | 22995 |
| 8 | 50565 |
| 9 | 110915 |
| 10 | 245927 |
| 11 | 545909 |
| 12 | 1225707 |
| 13 | 2760503 |
| 14 | 6282475 |
| 15 | 14352999 |
| 16 | 33082005 |
| 17 | 76545031 |
| 18 | 178364381 |
| 19 | 417062331 |
| 20 | 980496727 |
| 21 | 2311774857 |
| 22 | 5472654325 |
| 23 | 12985260305 |
| 24 | 30901798587 |
| 25 | 73669894089 |
[145,397,945,2153,4775,10527,22995,50565,110915, 245927,545909,1225707,2760503,6282475,14352999, 33082005,76545031,178364381,417062331,980496727, 2311774857,5472654325,12985260305,30901798587, 73669894089] |