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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 0 |
| 2 | 2 |
| 3 | 10 |
| 4 | 32 |
| 5 | 80 |
| 6 | 170 |
| 7 | 322 |
| 8 | 560 |
| 9 | 912 |
| 10 | 1410 |
| 11 | 2090 |
| 12 | 2992 |
| 13 | 4160 |
| 14 | 5642 |
| 15 | 7490 |
| 16 | 9760 |
| 17 | 12512 |
| 18 | 15810 |
| 19 | 19722 |
| 20 | 24320 |
| 21 | 29680 |
| 22 | 35882 |
| 23 | 43010 |
| 24 | 51152 |
| 25 | 60400 |
| 26 | 70850 |
| 27 | 82602 |
| 28 | 95760 |
| 29 | 110432 |
| 30 | 126730 |
| 31 | 144770 |
| 32 | 164672 |
| 33 | 186560 |
| 34 | 210562 |
| 35 | 236810 |
| 36 | 265440 |
| 37 | 296592 |
| 38 | 330410 |
| 39 | 367042 |
[0,0,2,10,32,80,170,322,560,912,1410,2090,2992, 4160,5642,7490,9760,12512,15810,19722,24320,29680, 35882,43010,51152,60400,70850,82602,95760,110432, 126730,144770,164672,186560,210562,236810,265440, 296592,330410,367042] |