n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 108 |
3 | 1488 |
4 | 22230 |
5 | 350244 |
6 | 5729724 |
7 | 96395616 |
8 | 1657248417 |
9 | 28987537150 |
10 | 514215324216 |
11 | 9229030737264 |
12 | 167283594343320 |
13 | 3057857090083908 |
14 | 56305821384711720 |
15 | 1043424549990820800 |
16 | 19445145508444588200 |
17 | 364191559218548917713 |
18 | 6851518654436447733980 |
[1,9,108,1488,22230,350244,5729724,96395616, 1657248417,28987537150,514215324216,9229030737264, 167283594343320,3057857090083908, 56305821384711720,1043424549990820800, 19445145508444588200,364191559218548917713, 6851518654436447733980] |