n | a(n) |
---|---|
0 | 1 |
1 | 123 |
2 | 3281 |
3 | 39175 |
4 | 286555 |
5 | 1508401 |
6 | 6271378 |
7 | 21836366 |
8 | 66220705 |
9 | 179784715 |
10 | 445824731 |
11 | 1025102013 |
12 | 2211041131 |
13 | 4514532465 |
14 | 8789910980 |
15 | 16416797116 |
16 | 29556115153 |
17 | 51502789451 |
18 | 87162399205 |
19 | 143684487475 |
20 | 231291309931 |
21 | 364347612673 |
22 | 562724586326 |
[1,123,3281,39175,286555,1508401,6271378,21836366, 66220705,179784715,445824731,1025102013, 2211041131,4514532465,8789910980,16416797116, 29556115153,51502789451,87162399205,143684487475, 231291309931,364347612673,562724586326] |