n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 0 |
4 | 3 |
5 | -7 |
6 | 18 |
7 | -70 |
8 | 144 |
9 | -573 |
10 | 1723 |
11 | -6890 |
12 | 13786 |
13 | -82714 |
14 | 165432 |
15 | -661724 |
16 | 2646901 |
17 | -13234503 |
18 | 26469012 |
19 | -158814070 |
20 | 317628146 |
21 | -1905768872 |
22 | 7623075492 |
23 | -30492301966 |
24 | 60984603940 |
25 | -487876831517 |
26 | 1463630494555 |
27 | -5854521978216 |
28 | 23418087912870 |
29 | -140508527477218 |
[1,1,0,3,-7,18,-70,144,-573,1723,-6890,13786, -82714,165432,-661724,2646901,-13234503,26469012, -158814070,317628146,-1905768872,7623075492, -30492301966,60984603940,-487876831517, 1463630494555,-5854521978216,23418087912870, -140508527477218] |