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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 600 |
| 2 | 90300 |
| 3 | 6100200 |
| 4 | 235597650 |
| 5 | 5953712520 |
| 6 | 107392877100 |
| 7 | 1469778991800 |
| 8 | 15969368635950 |
| 9 | 142638039461400 |
| 10 | 1076681464768860 |
| 11 | 7023070170402600 |
| 12 | 40317756506959050 |
| 13 | 206818794600952200 |
| 14 | 960154451013729900 |
[1,600,90300,6100200,235597650,5953712520, 107392877100,1469778991800,15969368635950, 142638039461400,1076681464768860,7023070170402600, 40317756506959050,206818794600952200, 960154451013729900] |