n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | -1 |
3 | 4 |
4 | -7 |
5 | 14 |
6 | -91 |
7 | 208 |
8 | -494 |
9 | 10868 |
10 | -27170 |
11 | 69160 |
12 | -535990 |
13 | 1401820 |
14 | -3704810 |
15 | 29638480 |
16 | -79653415 |
17 | 215532770 |
18 | -5280552865 |
19 | 14452039420 |
20 | -39743108405 |
21 | 329300041070 |
22 | -913059204785 |
23 | 2540686482880 |
24 | -21278249294120 |
25 | 59579098023536 |
26 | -167279775219928 |
27 | 12713262916714528 |
[1,2,-1,4,-7,14,-91,208,-494,10868,-27170,69160, -535990,1401820,-3704810,29638480,-79653415, 215532770,-5280552865,14452039420,-39743108405, 329300041070,-913059204785,2540686482880, -21278249294120,59579098023536,-167279775219928, 12713262916714528] |