n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 10 |
5 | 15 |
6 | 50 |
7 | 77 |
8 | 266 |
9 | 414 |
10 | 1452 |
11 | 2277 |
12 | 8074 |
13 | 12727 |
14 | 45474 |
15 | 71955 |
16 | 258570 |
17 | 410346 |
18 | 1481108 |
19 | 2355962 |
20 | 8533660 |
21 | 13599915 |
22 | 49402850 |
23 | 78855339 |
24 | 287134346 |
25 | 458917850 |
26 | 1674425300 |
27 | 2679183405 |
28 | 9792273690 |
29 | 15683407785 |
[1,1,2,3,10,15,50,77,266,414,1452,2277,8074,12727, 45474,71955,258570,410346,1481108,2355962,8533660, 13599915,49402850,78855339,287134346,458917850, 1674425300,2679183405,9792273690,15683407785] |