n | a(n) |
---|---|
1 | 1 |
2 | 8 |
3 | 81 |
4 | 1028 |
5 | 15780 |
6 | 284652 |
7 | 5903464 |
8 | 138407544 |
9 | 3619892160 |
10 | 104485268960 |
11 | 3299177464704 |
12 | 113120695539612 |
13 | 4185473097734656 |
14 | 166217602768452900 |
15 | 7051983744002135040 |
16 | 318324623296131263408 |
17 | 15232941497754507165696 |
18 | 770291040239888149405944 |
19 | 41042353622873800536064000 |
20 | 2298206207793743728251532020 |
[1,8,81,1028,15780,284652,5903464,138407544, 3619892160,104485268960,3299177464704, 113120695539612,4185473097734656, 166217602768452900,7051983744002135040, 318324623296131263408,15232941497754507165696, 770291040239888149405944, 41042353622873800536064000, 2298206207793743728251532020] |