n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 10 |
6 | 25 |
7 | 69 |
8 | 193 |
9 | 565 |
10 | 1680 |
11 | 5113 |
12 | 15757 |
13 | 49223 |
14 | 155228 |
15 | 493937 |
16 | 1583002 |
17 | 5106386 |
18 | 16563542 |
19 | 53995678 |
20 | 176797966 |
21 | 581196445 |
22 | 1917446630 |
23 | 6346554919 |
24 | 21068877925 |
25 | 70133571797 |
26 | 234043258802 |
27 | 782831380626 |
28 | 2624022529690 |
29 | 8813080348897 |
30 | 29654400681966 |
31 | 99953565213645 |
32 | 337447946046906 |
33 | 1140961171059563 |
[1,1,2,4,10,25,69,193,565,1680,5113,15757,49223, 155228,493937,1583002,5106386,16563542,53995678, 176797966,581196445,1917446630,6346554919, 21068877925,70133571797,234043258802,782831380626, 2624022529690,8813080348897,29654400681966, 99953565213645,337447946046906,1140961171059563] |