n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 24 |
7 | 67 |
8 | 182 |
9 | 520 |
10 | 1474 |
11 | 4248 |
12 | 12196 |
13 | 35168 |
14 | 101226 |
15 | 291565 |
16 | 838764 |
17 | 2412033 |
18 | 6929754 |
19 | 19896915 |
20 | 57084939 |
[1,1,2,4,10,24,67,182,520,1474,4248,12196,35168, 101226,291565,838764,2412033,6929754,19896915, 57084939] |