n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 19 |
3 | 140 |
4 | 1071 |
5 | 8338 |
6 | 65715 |
7 | 523134 |
8 | 4200411 |
9 | 33981063 |
10 | 276739029 |
11 | 2267119660 |
12 | 18671460905 |
13 | 154507444731 |
14 | 1284064525987 |
15 | 10713124806766 |
16 | 89698502332131 |
17 | 753460696118753 |
18 | 6347826760778761 |
19 | 53625936977157324 |
20 | 454169619779127597 |
21 | 3855428639572871124 |
[1,3,19,140,1071,8338,65715,523134,4200411, 33981063,276739029,2267119660,18671460905, 154507444731,1284064525987,10713124806766, 89698502332131,753460696118753,6347826760778761, 53625936977157324,454169619779127597, 3855428639572871124] |