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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 2 |
| 3 | 4 |
| 4 | 19 |
| 5 | 21 |
| 6 | 65 |
| 7 | 82 |
| 8 | 278 |
| 9 | 261 |
| 10 | 551 |
| 11 | 650 |
| 12 | 1608 |
| 13 | 1339 |
| 14 | 2645 |
| 15 | 2506 |
| 16 | 6462 |
| 17 | 4736 |
| 18 | 7722 |
| 19 | 8261 |
| 20 | 17638 |
| 21 | 12061 |
| 22 | 20988 |
| 23 | 20482 |
| 24 | 40829 |
| 25 | 28797 |
| 26 | 46485 |
| 27 | 41543 |
| 28 | 88400 |
| 29 | 61485 |
| 30 | 84252 |
| 31 | 84319 |
| 32 | 174419 |
| 33 | 106700 |
| 34 | 167566 |
| 35 | 147240 |
| 36 | 277677 |
| 37 | 196225 |
| 38 | 291240 |
| 39 | 242915 |
| 40 | 492687 |
[1,2,4,19,21,65,82,278,261,551,650,1608,1339,2645, 2506,6462,4736,7722,8261,17638,12061,20988,20482, 40829,28797,46485,41543,88400,61485,84252,84319, 174419,106700,167566,147240,277677,196225,291240, 242915,492687] |