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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 1 |
| 3 | 9 |
| 4 | 20 |
| 5 | 89 |
| 6 | 177 |
| 7 | 273 |
| 8 | 374 |
| 9 | 485 |
| 10 | 666 |
| 11 | 1275 |
| 12 | 1894 |
| 13 | 2583 |
| 14 | 3391 |
| 15 | 4209 |
| 16 | 5097 |
| 17 | 6003 |
| 18 | 6919 |
| 19 | 7905 |
| 20 | 8906 |
| 21 | 10017 |
| 22 | 11708 |
| 23 | 13589 |
| 24 | 15550 |
| 25 | 21559 |
| 26 | 27678 |
| 27 | 34377 |
| 28 | 41266 |
| 29 | 48235 |
| 30 | 56243 |
| 31 | 64361 |
| 32 | 73059 |
| 33 | 81947 |
| 34 | 90915 |
| 35 | 99921 |
| 36 | 109037 |
[0,1,9,20,89,177,273,374,485,666,1275,1894,2583, 3391,4209,5097,6003,6919,7905,8906,10017,11708, 13589,15550,21559,27678,34377,41266,48235,56243, 64361,73059,81947,90915,99921,109037] |