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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 10 |
| 3 | 60 |
| 4 | 172 |
| 5 | 462 |
| 6 | 966 |
| 7 | 1880 |
| 8 | 3256 |
| 9 | 5370 |
| 10 | 8290 |
| 11 | 12372 |
| 12 | 17700 |
| 13 | 24710 |
| 14 | 33502 |
| 15 | 44592 |
| 16 | 58096 |
| 17 | 74610 |
| 18 | 94266 |
| 19 | 117740 |
| 20 | 145180 |
| 21 | 177342 |
| 22 | 214390 |
| 23 | 257160 |
| 24 | 305832 |
| 25 | 361322 |
| 26 | 423826 |
| 27 | 494340 |
| 28 | 573076 |
| 29 | 661110 |
| 30 | 758670 |
| 31 | 866912 |
| 32 | 986080 |
| 33 | 1117410 |
| 34 | 1261162 |
[2,10,60,172,462,966,1880,3256,5370,8290,12372, 17700,24710,33502,44592,58096,74610,94266,117740, 145180,177342,214390,257160,305832,361322,423826, 494340,573076,661110,758670,866912,986080,1117410, 1261162] |