n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 20 |
3 | 470 |
4 | 19912 |
5 | 1326382 |
6 | 127677580 |
7 | 16767030632 |
8 | 2880746218304 |
9 | 627213971899610 |
10 | 168767535712912684 |
11 | 54994347890521005100 |
12 | 21342142821229037730064 |
13 | 9726400286221416303901358 |
14 | 5143644030714149522751534524 |
15 | 3124088412968372614077895431788 |
16 | 2159818183532141245447039295746240 |
17 | 1686295004858842334963772859214802354 |
18 | 1476540037893212558044217633785452773068 |
19 | 1440964034588041764141738802548853847618732 |
[1,2,20,470,19912,1326382,127677580,16767030632, 2880746218304,627213971899610,168767535712912684, 54994347890521005100,21342142821229037730064, 9726400286221416303901358, 5143644030714149522751534524, 3124088412968372614077895431788, 2159818183532141245447039295746240, 1686295004858842334963772859214802354, 1476540037893212558044217633785452773068, 1440964034588041764141738802548853847618732] |