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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 677 |
| 3 | 47175 |
| 4 | 1709675 |
| 5 | 44451550 |
| 6 | 947113254 |
| 7 | 17716715490 |
| 8 | 302925749370 |
| 9 | 4856552119935 |
| 10 | 74258231957275 |
| 11 | 1095758678253041 |
| 12 | 15736592058221517 |
| 13 | 221321453958111620 |
| 14 | 3062416225698505060 |
| 15 | 41836761536767296660 |
| 16 | 565817483249269872324 |
| 17 | 7591501608353930033805 |
| 18 | 101209790951020335444705 |
[1,677,47175,1709675,44451550,947113254, 17716715490,302925749370,4856552119935, 74258231957275,1095758678253041,15736592058221517, 221321453958111620,3062416225698505060, 41836761536767296660,565817483249269872324, 7591501608353930033805,101209790951020335444705] |