n | a(n) |
---|---|
0 | 0 |
1 | -2 |
2 | -8 |
3 | -28 |
4 | -96 |
5 | -328 |
6 | -1120 |
7 | -3824 |
8 | -13056 |
9 | -44576 |
10 | -152192 |
11 | -519616 |
12 | -1774080 |
13 | -6057088 |
14 | -20680192 |
15 | -70606592 |
16 | -241065984 |
17 | -823050752 |
18 | -2810071040 |
19 | -9594182656 |
20 | -32756588544 |
21 | -111837988864 |
22 | -381838778368 |
23 | -1303679135744 |
24 | -4451038986240 |
25 | -15196797673472 |
[0,-2,-8,-28,-96,-328,-1120,-3824,-13056,-44576, -152192,-519616,-1774080,-6057088,-20680192, -70606592,-241065984,-823050752,-2810071040, -9594182656,-32756588544,-111837988864, -381838778368,-1303679135744,-4451038986240, -15196797673472] |