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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 16 |
| 3 | 84 |
| 4 | 412 |
| 5 | 1126 |
| 6 | 2760 |
| 7 | 5739 |
| 8 | 10982 |
| 9 | 19695 |
| 10 | 33068 |
| 11 | 52801 |
| 12 | 80638 |
| 13 | 118731 |
| 14 | 169368 |
| 15 | 235135 |
| 16 | 318890 |
| 17 | 423733 |
| 18 | 553028 |
| 19 | 710389 |
| 20 | 899690 |
| 21 | 1125059 |
| 22 | 1390880 |
| 23 | 1701793 |
| 24 | 2062694 |
| 25 | 2478735 |
| 26 | 2955324 |
| 27 | 3498125 |
| 28 | 4113058 |
| 29 | 4806299 |
| 30 | 5584280 |
| 31 | 6453689 |
[1,16,84,412,1126,2760,5739,10982,19695,33068, 52801,80638,118731,169368,235135,318890,423733, 553028,710389,899690,1125059,1390880,1701793, 2062694,2478735,2955324,3498125,4113058,4806299, 5584280,6453689] |