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| n | a(n) |
|---|---|
| 1 | 70 |
| 2 | 7827 |
| 3 | 208072 |
| 4 | 2322599 |
| 5 | 16537086 |
| 6 | 84059234 |
| 7 | 342943680 |
| 8 | 1169405354 |
| 9 | 3500184570 |
| 10 | 9372540629 |
| 11 | 23022951048 |
| 12 | 52423261153 |
| 13 | 112270651514 |
| 14 | 227577256564 |
| 15 | 440658095360 |
| 16 | 818409534692 |
| 17 | 1466948929086 |
| 18 | 2544850623111 |
| 19 | 4291394833480 |
[70,7827,208072,2322599,16537086,84059234, 342943680,1169405354,3500184570,9372540629, 23022951048,52423261153,112270651514,227577256564, 440658095360,818409534692,1466948929086, 2544850623111,4291394833480] |