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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 6 |
| 3 | 16 |
| 4 | 34 |
| 5 | 71 |
| 6 | 135 |
| 7 | 235 |
| 8 | 396 |
| 9 | 641 |
| 10 | 993 |
| 11 | 1496 |
| 12 | 2193 |
| 13 | 3136 |
| 14 | 4398 |
| 15 | 6065 |
| 16 | 8214 |
| 17 | 10949 |
| 18 | 14438 |
| 19 | 18760 |
| 20 | 24151 |
| 21 | 30736 |
| 22 | 38755 |
| 23 | 48448 |
| 24 | 60129 |
| 25 | 73970 |
| 26 | 90426 |
| 27 | 109793 |
| 28 | 132568 |
| 29 | 158991 |
| 30 | 189853 |
| 31 | 225331 |
| 32 | 266394 |
| 33 | 313294 |
| 34 | 367015 |
| 35 | 428094 |
| 36 | 497667 |
| 37 | 575969 |
| 38 | 664608 |
[2,6,16,34,71,135,235,396,641,993,1496,2193,3136, 4398,6065,8214,10949,14438,18760,24151,30736, 38755,48448,60129,73970,90426,109793,132568, 158991,189853,225331,266394,313294,367015,428094, 497667,575969,664608] |