n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 1 |
4 | 5 |
5 | 24 |
6 | 128 |
7 | 835 |
8 | 6423 |
9 | 56410 |
10 | 554306 |
11 | 6016077 |
12 | 71426225 |
13 | 920484892 |
14 | 12793635300 |
15 | 190730117959 |
16 | 3035659077083 |
17 | 51371100102990 |
18 | 920989078354838 |
19 | 17437084517068465 |
20 | 347647092476801301 |
21 | 7280060180210901232 |
22 | 159755491837445900120 |
23 | 3665942433747225901707 |
[0,0,0,1,5,24,128,835,6423,56410,554306,6016077, 71426225,920484892,12793635300,190730117959, 3035659077083,51371100102990,920989078354838, 17437084517068465,347647092476801301, 7280060180210901232,159755491837445900120, 3665942433747225901707] |