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| n | a(n) |
|---|---|
| 1 | 423220 |
| 2 | 6622988 |
| 3 | 122218188 |
| 4 | 2734167036 |
| 5 | 64803794224 |
| 6 | 1650535163756 |
| 7 | 42662876957452 |
| 8 | 1138753868813024 |
| 9 | 30417352450106740 |
| 10 | 825958926565574016 |
| 11 | 22355797769496998816 |
| 12 | 610836631650873729748 |
| 13 | 16626988536692397545480 |
[423220,6622988,122218188,2734167036,64803794224, 1650535163756,42662876957452,1138753868813024, 30417352450106740,825958926565574016, 22355797769496998816,610836631650873729748, 16626988536692397545480] |