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| n | a(n) |
|---|---|
| 0 | 90 |
| 1 | 1560 |
| 2 | 6460 |
| 3 | 16848 |
| 4 | 34782 |
| 5 | 62320 |
| 6 | 101520 |
| 7 | 154440 |
| 8 | 223138 |
| 9 | 309672 |
| 10 | 416100 |
| 11 | 544480 |
| 12 | 696870 |
| 13 | 875328 |
| 14 | 1081912 |
| 15 | 1318680 |
| 16 | 1587690 |
| 17 | 1891000 |
| 18 | 2230668 |
| 19 | 2608752 |
| 20 | 3027310 |
| 21 | 3488400 |
| 22 | 3994080 |
| 23 | 4546408 |
| 24 | 5147442 |
| 25 | 5799240 |
| 26 | 6503860 |
| 27 | 7263360 |
| 28 | 8079798 |
| 29 | 8955232 |
| 30 | 9891720 |
[90,1560,6460,16848,34782,62320,101520,154440, 223138,309672,416100,544480,696870,875328,1081912, 1318680,1587690,1891000,2230668,2608752,3027310, 3488400,3994080,4546408,5147442,5799240,6503860, 7263360,8079798,8955232,9891720] |