n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 0 |
3 | -2 |
4 | -8 |
5 | -25 |
6 | -72 |
7 | -197 |
8 | -514 |
9 | -1267 |
10 | -2884 |
11 | -5748 |
12 | -8468 |
13 | -119 |
14 | 68688 |
15 | 382434 |
16 | 1557232 |
17 | 5481369 |
18 | 17494220 |
19 | 51382510 |
20 | 138541696 |
21 | 335629309 |
22 | 685402744 |
23 | 919210879 |
24 | -913800290 |
25 | -13689355373 |
26 | -71111254588 |
27 | -287636394436 |
[1,1,0,-2,-8,-25,-72,-197,-514,-1267,-2884,-5748, -8468,-119,68688,382434,1557232,5481369,17494220, 51382510,138541696,335629309,685402744,919210879, -913800290,-13689355373,-71111254588, -287636394436] |