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| n | a(n) |
|---|---|
| 1 | 35 |
| 2 | 1365 |
| 3 | 18390 |
| 4 | 136010 |
| 5 | 684585 |
| 6 | 2644815 |
| 7 | 8435180 |
| 8 | 23274900 |
| 9 | 57355695 |
| 10 | 129095945 |
| 11 | 269791170 |
| 12 | 530015070 |
| 13 | 988165685 |
| 14 | 1761591555 |
| 15 | 3020773080 |
| 16 | 5007074600 |
| 17 | 8054623035 |
| 18 | 12616909245 |
| 19 | 19298748590 |
| 20 | 28894277490 |
| 21 | 42431703105 |
| 22 | 61225563575 |
[35,1365,18390,136010,684585,2644815,8435180, 23274900,57355695,129095945,269791170,530015070, 988165685,1761591555,3020773080,5007074600, 8054623035,12616909245,19298748590,28894277490, 42431703105,61225563575] |