n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 10 |
4 | 39 |
5 | 61 |
6 | 180 |
7 | 300 |
8 | 1157 |
9 | 1823 |
10 | 5502 |
11 | 9282 |
12 | 35911 |
13 | 57101 |
14 | 174312 |
15 | 296536 |
16 | 1147657 |
17 | 1837307 |
18 | 5643506 |
19 | 9657582 |
20 | 37349067 |
21 | 60103305 |
22 | 185313180 |
23 | 318533124 |
24 | 1230555661 |
25 | 1988344759 |
26 | 6145979174 |
27 | 10601082970 |
28 | 40907870479 |
[1,2,6,10,39,61,180,300,1157,1823,5502,9282,35911, 57101,174312,296536,1147657,1837307,5643506, 9657582,37349067,60103305,185313180,318533124, 1230555661,1988344759,6145979174,10601082970, 40907870479] |