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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 38 |
| 4 | 152 |
| 5 | 542 |
| 6 | 746 |
| 7 | 1632 |
| 8 | 2243 |
| 9 | 5317 |
| 10 | 7520 |
| 11 | 15006 |
| 12 | 33156 |
| 13 | 39925 |
| 14 | 101946 |
| 15 | 130340 |
| 16 | 136572 |
| 17 | 331757 |
| 18 | 397252 |
| 19 | 560017 |
| 20 | 722898 |
| 21 | 1037524 |
| 22 | 1197551 |
| 23 | 1737710 |
| 24 | 1754109 |
| 25 | 2160356 |
| 26 | 2217439 |
| 27 | 2559702 |
| 28 | 2820804 |
| 29 | 5173565 |
| 30 | 6197364 |
| 31 | 7014969 |
| 32 | 7597461 |
[1,2,38,152,542,746,1632,2243,5317,7520,15006, 33156,39925,101946,130340,136572,331757,397252, 560017,722898,1037524,1197551,1737710,1754109, 2160356,2217439,2559702,2820804,5173565,6197364, 7014969,7597461] |