n | a(n) |
---|---|
1 | 0 |
2 | 20 |
3 | 552 |
4 | 5992 |
5 | 76264 |
6 | 1081934 |
7 | 15270416 |
8 | 213355654 |
9 | 2979297186 |
10 | 41637993524 |
11 | 582001470148 |
12 | 8134516660856 |
13 | 113692450572670 |
14 | 1589033640398564 |
15 | 22209327313491742 |
16 | 310411398997352946 |
17 | 4338502347339782972 |
[0,20,552,5992,76264,1081934,15270416,213355654, 2979297186,41637993524,582001470148,8134516660856, 113692450572670,1589033640398564, 22209327313491742,310411398997352946, 4338502347339782972] |