n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 6 |
4 | 15 |
5 | 36 |
6 | 91 |
7 | 232 |
8 | 603 |
9 | 1585 |
10 | 4213 |
11 | 11298 |
12 | 30537 |
13 | 83097 |
14 | 227475 |
15 | 625992 |
16 | 1730787 |
17 | 4805595 |
18 | 13393689 |
19 | 37458330 |
20 | 105089229 |
21 | 295673994 |
22 | 834086421 |
23 | 2358641376 |
24 | 6684761125 |
25 | 18985057351 |
26 | 54022715451 |
27 | 154000562758 |
28 | 439742222071 |
29 | 1257643249140 |
30 | 3602118427251 |
[1,1,3,6,15,36,91,232,603,1585,4213,11298,30537, 83097,227475,625992,1730787,4805595,13393689, 37458330,105089229,295673994,834086421,2358641376, 6684761125,18985057351,54022715451,154000562758, 439742222071,1257643249140,3602118427251] |