n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 33 |
4 | 111 |
5 | 379 |
6 | 1312 |
7 | 4596 |
8 | 16266 |
9 | 58082 |
10 | 209010 |
11 | 757259 |
12 | 2760123 |
13 | 10114131 |
14 | 37239072 |
15 | 137698584 |
16 | 511140558 |
17 | 1904038986 |
18 | 7115422212 |
19 | 26668376994 |
20 | 100221202998 |
21 | 377570383518 |
22 | 1425706128480 |
23 | 5394898197448 |
24 | 20454676622476 |
[1,3,10,33,111,379,1312,4596,16266,58082,209010, 757259,2760123,10114131,37239072,137698584, 511140558,1904038986,7115422212,26668376994, 100221202998,377570383518,1425706128480, 5394898197448,20454676622476] |