n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 3 |
4 | 10 |
5 | 18 |
6 | 60 |
7 | 115 |
8 | 410 |
9 | 822 |
10 | 2996 |
11 | 6174 |
12 | 22980 |
13 | 48324 |
14 | 182328 |
15 | 389187 |
16 | 1484410 |
17 | 3205710 |
18 | 12329988 |
19 | 26876586 |
20 | 104080812 |
21 | 228606012 |
22 | 890262984 |
23 | 1967830254 |
24 | 7699472676 |
25 | 17110322908 |
26 | 67215426440 |
27 | 150058534620 |
28 | 591517612616 |
29 | 1325828841480 |
30 | 5241992235888 |
[1,1,2,3,10,18,60,115,410,822,2996,6174,22980, 48324,182328,389187,1484410,3205710,12329988, 26876586,104080812,228606012,890262984,1967830254, 7699472676,17110322908,67215426440,150058534620, 591517612616,1325828841480,5241992235888] |