n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 4 |
3 | 15 |
4 | 196 |
5 | 2145 |
6 | 33786 |
7 | 587041 |
8 | 12080888 |
9 | 278692497 |
10 | 7213075030 |
11 | 205967845281 |
12 | 6444486304884 |
13 | 219096784628761 |
14 | 8044651840755362 |
15 | 317224112769528945 |
16 | 13371158269397088496 |
17 | 599930571306586259745 |
18 | 28547657791777984900014 |
19 | 1436014157616531876023713 |
[1,0,4,15,196,2145,33786,587041,12080888, 278692497,7213075030,205967845281,6444486304884, 219096784628761,8044651840755362, 317224112769528945,13371158269397088496, 599930571306586259745,28547657791777984900014, 1436014157616531876023713] |