n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 10 |
3 | 64 |
4 | 328 |
5 | 1462 |
6 | 5908 |
7 | 22180 |
8 | 78592 |
9 | 265729 |
10 | 864146 |
11 | 2719028 |
12 | 8316200 |
13 | 24814832 |
14 | 72453344 |
15 | 207502016 |
16 | 584094080 |
17 | 1618757120 |
18 | 4423347200 |
19 | 11932579840 |
20 | 31812874240 |
21 | 83901227008 |
22 | 219074805760 |
23 | 566754967552 |
[0,1,10,64,328,1462,5908,22180,78592,265729, 864146,2719028,8316200,24814832,72453344, 207502016,584094080,1618757120,4423347200, 11932579840,31812874240,83901227008,219074805760, 566754967552] |