n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 4 |
4 | 11 |
5 | 40 |
6 | 147 |
7 | 568 |
8 | 2227 |
9 | 8824 |
10 | 35123 |
11 | 140152 |
12 | 559923 |
13 | 2238328 |
14 | 8950579 |
15 | 35796856 |
16 | 143176499 |
17 | 572684152 |
18 | 2290692915 |
19 | 9162684280 |
20 | 36650562355 |
21 | 146601899896 |
22 | 586406900531 |
23 | 2345626204024 |
24 | 9382502019891 |
25 | 37530002487160 |
[1,1,4,11,40,147,568,2227,8824,35123,140152, 559923,2238328,8950579,35796856,143176499, 572684152,2290692915,9162684280,36650562355, 146601899896,586406900531,2345626204024, 9382502019891,37530002487160] |