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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 70 |
| 2 | 2450 |
| 3 | 57190 |
| 4 | 1002050 |
| 5 | 14063014 |
| 6 | 164736530 |
| 7 | 1657410310 |
| 8 | 14625892610 |
| 9 | 115046039430 |
| 10 | 817022990098 |
| 11 | 5293365787430 |
| 12 | 31558819585090 |
| 13 | 174411107278310 |
| 14 | 899105953178770 |
| 15 | 4346984074475462 |
| 16 | 19804773034861570 |
[1,70,2450,57190,1002050,14063014,164736530, 1657410310,14625892610,115046039430,817022990098, 5293365787430,31558819585090,174411107278310, 899105953178770,4346984074475462, 19804773034861570] |