n | a(n) |
---|---|
0 | 1 |
1 | 12 |
2 | 102 |
3 | 812 |
4 | 6402 |
5 | 50412 |
6 | 396902 |
7 | 3124812 |
8 | 24601602 |
9 | 193688012 |
10 | 1524902502 |
11 | 12005532012 |
12 | 94519353602 |
13 | 744149296812 |
14 | 5858675020902 |
15 | 46125250870412 |
16 | 363143331942402 |
17 | 2859021404668812 |
18 | 22509027905408102 |
19 | 177213201838596012 |
20 | 1395196586803360002 |
21 | 10984359492588284012 |
[1,12,102,812,6402,50412,396902,3124812,24601602, 193688012,1524902502,12005532012,94519353602, 744149296812,5858675020902,46125250870412, 363143331942402,2859021404668812, 22509027905408102,177213201838596012, 1395196586803360002,10984359492588284012] |