n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 6 |
4 | 26 |
5 | 106 |
6 | 431 |
7 | 1757 |
8 | 7168 |
9 | 29244 |
10 | 119305 |
11 | 486716 |
12 | 1985603 |
13 | 8100456 |
14 | 33046585 |
15 | 134816705 |
16 | 549997641 |
17 | 2243767969 |
18 | 9153665985 |
19 | 37343255690 |
20 | 152345382480 |
21 | 621507555626 |
22 | 2535499503900 |
23 | 10343812679475 |
24 | 42198572937400 |
[1,1,6,26,106,431,1757,7168,29244,119305,486716, 1985603,8100456,33046585,134816705,549997641, 2243767969,9153665985,37343255690,152345382480, 621507555626,2535499503900,10343812679475, 42198572937400] |