n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 44 |
5 | 361 |
6 | 3654 |
7 | 44207 |
8 | 622552 |
9 | 10005041 |
10 | 180713290 |
11 | 3624270839 |
12 | 79914671748 |
13 | 1921576392793 |
14 | 50040900884366 |
15 | 1403066801155039 |
16 | 42142044935535536 |
17 | 1349948504738292193 |
18 | 45940391206037470098 |
[0,1,2,7,44,361,3654,44207,622552,10005041, 180713290,3624270839,79914671748,1921576392793, 50040900884366,1403066801155039,42142044935535536, 1349948504738292193,45940391206037470098] |