n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 8 |
4 | 82 |
5 | 512 |
6 | 2644 |
7 | 12364 |
8 | 54598 |
9 | 232772 |
10 | 970520 |
11 | 3988624 |
12 | 16239066 |
13 | 65709256 |
14 | 264814140 |
15 | 1064414100 |
16 | 4271035662 |
17 | 17118683020 |
18 | 68563527616 |
19 | 274481537112 |
20 | 1098506723042 |
21 | 4395504614544 |
22 | 17585769696164 |
23 | 70352578566620 |
24 | 281434319454038 |
25 | 1125797816327892 |
[0,0,8,82,512,2644,12364,54598,232772,970520, 3988624,16239066,65709256,264814140,1064414100, 4271035662,17118683020,68563527616,274481537112, 1098506723042,4395504614544,17585769696164, 70352578566620,281434319454038,1125797816327892] |