n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 6 |
4 | 21 |
5 | 60 |
6 | 237 |
7 | 1498 |
8 | 9289 |
9 | 46872 |
10 | 208249 |
11 | 1096590 |
12 | 7953693 |
13 | 57151380 |
14 | 296264997 |
15 | 707086882 |
16 | -2635164911 |
17 | -25223244624 |
18 | -123580612751 |
19 | -4185669625194 |
20 | -97178084153691 |
21 | -1235239023971988 |
22 | -9092858617394211 |
[1,0,1,6,21,60,237,1498,9289,46872,208249,1096590, 7953693,57151380,296264997,707086882,-2635164911, -25223244624,-123580612751,-4185669625194, -97178084153691,-1235239023971988, -9092858617394211] |