n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 16 |
4 | 56 |
5 | 202 |
6 | 741 |
7 | 2752 |
8 | 10318 |
9 | 38972 |
10 | 148070 |
11 | 565280 |
12 | 2166646 |
13 | 8332378 |
14 | 32136205 |
15 | 124249856 |
16 | 481433286 |
17 | 1868972828 |
18 | 7267804550 |
19 | 28304698336 |
20 | 110383060776 |
21 | 431000853028 |
22 | 1684754608210 |
23 | 6592277745536 |
24 | 25818887839956 |
[1,2,5,16,56,202,741,2752,10318,38972,148070, 565280,2166646,8332378,32136205,124249856, 481433286,1868972828,7267804550,28304698336, 110383060776,431000853028,1684754608210, 6592277745536,25818887839956] |