n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 6 |
3 | 36 |
4 | 132 |
5 | 540 |
6 | 2076 |
7 | 8316 |
8 | 32892 |
9 | 131580 |
10 | 524796 |
11 | 2099196 |
12 | 8390652 |
13 | 33562620 |
14 | 134225916 |
15 | 536903676 |
16 | 2147516412 |
17 | 8590065660 |
18 | 34359869436 |
19 | 137439477756 |
20 | 549756338172 |
21 | 2199025352700 |
22 | 8796095119356 |
23 | 35184380477436 |
24 | 140737496743932 |
[0,0,6,36,132,540,2076,8316,32892,131580,524796, 2099196,8390652,33562620,134225916,536903676, 2147516412,8590065660,34359869436,137439477756, 549756338172,2199025352700,8796095119356, 35184380477436,140737496743932] |