n | a(n) |
---|---|
0 | 1 |
1 | 8 |
2 | 72 |
3 | 528 |
4 | 3582 |
5 | 22512 |
6 | 134040 |
7 | 760896 |
8 | 4152852 |
9 | 21897408 |
10 | 112037852 |
11 | 558049096 |
12 | 2713386758 |
13 | 12907891432 |
14 | 60190937724 |
15 | 275575683576 |
16 | 1240483837374 |
17 | 5496780654912 |
18 | 24002417723284 |
19 | 103380586347376 |
20 | 439565299059250 |
21 | 1846430027348704 |
22 | 7667597264015436 |
[1,8,72,528,3582,22512,134040,760896,4152852, 21897408,112037852,558049096,2713386758, 12907891432,60190937724,275575683576, 1240483837374,5496780654912,24002417723284, 103380586347376,439565299059250,1846430027348704, 7667597264015436] |