n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 5 |
3 | 19 |
4 | 63 |
5 | 192 |
6 | 552 |
7 | 1520 |
8 | 4048 |
9 | 10496 |
10 | 26624 |
11 | 66304 |
12 | 162560 |
13 | 393216 |
14 | 940032 |
15 | 2224128 |
16 | 5214208 |
17 | 12124160 |
18 | 27983872 |
19 | 64159744 |
20 | 146210816 |
21 | 331350016 |
22 | 747110400 |
23 | 1676673024 |
24 | 3746562048 |
25 | 8338276352 |
26 | 18488492032 |
[0,1,5,19,63,192,552,1520,4048,10496,26624,66304, 162560,393216,940032,2224128,5214208,12124160, 27983872,64159744,146210816,331350016,747110400, 1676673024,3746562048,8338276352,18488492032] |