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| n | a(n) |
|---|---|
| 1 | 165690 |
| 2 | 903000 |
| 3 | 10831800 |
| 4 | 13773480 |
| 5 | 22813770 |
| 6 | 31090080 |
| 7 | 43751820 |
| 8 | 60881310 |
| 9 | 86746170 |
| 10 | 118516860 |
| 11 | 239951250 |
| 12 | 281573040 |
| 13 | 359932650 |
| 14 | 384903750 |
| 15 | 518385000 |
| 16 | 902801550 |
| 17 | 1027007520 |
| 18 | 1086331680 |
| 19 | 1329198570 |
| 20 | 2176467090 |
[165690,903000,10831800,13773480,22813770, 31090080,43751820,60881310,86746170,118516860, 239951250,281573040,359932650,384903750,518385000, 902801550,1027007520,1086331680,1329198570, 2176467090] |