n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 110 |
3 | 990 |
4 | 8195 |
5 | 62854 |
6 | 455675 |
7 | 3147210 |
8 | 20874205 |
9 | 133650330 |
10 | 829656124 |
11 | 5010237850 |
12 | 29516429335 |
13 | 170025614980 |
14 | 959521900370 |
15 | 5313793679524 |
16 | 28919055049170 |
17 | 154857622067610 |
18 | 816814457097155 |
19 | 4247904244224630 |
20 | 21800095116980345 |
21 | 110485969920692960 |
[1,10,110,990,8195,62854,455675,3147210,20874205, 133650330,829656124,5010237850,29516429335, 170025614980,959521900370,5313793679524, 28919055049170,154857622067610,816814457097155, 4247904244224630,21800095116980345, 110485969920692960] |