n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 6 |
3 | 10 |
4 | 21 |
5 | 39 |
6 | 92 |
7 | 198 |
8 | 498 |
9 | 1219 |
10 | 3210 |
11 | 8418 |
12 | 22913 |
13 | 62415 |
14 | 173088 |
15 | 481598 |
16 | 1351983 |
17 | 3808083 |
18 | 10781954 |
19 | 30615354 |
20 | 87230157 |
21 | 249144711 |
22 | 713387076 |
23 | 2046856566 |
24 | 5884491500 |
25 | 16946569371 |
26 | 48883660146 |
27 | 141217160458 |
28 | 408519019449 |
29 | 1183289542815 |
[1,3,6,10,21,39,92,198,498,1219,3210,8418,22913, 62415,173088,481598,1351983,3808083,10781954, 30615354,87230157,249144711,713387076,2046856566, 5884491500,16946569371,48883660146,141217160458, 408519019449,1183289542815] |