n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 36 |
7 | 98 |
8 | 327 |
9 | 988 |
10 | 3392 |
11 | 10872 |
12 | 38795 |
13 | 129520 |
14 | 469662 |
15 | 1609176 |
16 | 5935728 |
17 | 20786804 |
18 | 77416352 |
19 | 274792342 |
20 | 1035050705 |
21 | 3719296036 |
22 | 14094000938 |
23 | 51119572738 |
24 | 195075365778 |
25 | 712918642042 |
26 | 2734475097609 |
27 | 10055531355652 |
28 | 38747262233793 |
[1,1,1,2,5,12,36,98,327,988,3392,10872,38795, 129520,469662,1609176,5935728,20786804,77416352, 274792342,1035050705,3719296036,14094000938, 51119572738,195075365778,712918642042, 2734475097609,10055531355652,38747262233793] |