n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 14 |
3 | 48 |
4 | 166 |
5 | 578 |
6 | 2029 |
7 | 7182 |
8 | 25623 |
9 | 92078 |
10 | 333064 |
11 | 1211896 |
12 | 4433175 |
13 | 16294856 |
14 | 60155235 |
15 | 222950730 |
16 | 829284435 |
17 | 3094726590 |
18 | 11583668940 |
19 | 43478013360 |
20 | 163606061280 |
21 | 617094776844 |
22 | 2332666266954 |
23 | 8835573652892 |
[1,4,14,48,166,578,2029,7182,25623,92078,333064, 1211896,4433175,16294856,60155235,222950730, 829284435,3094726590,11583668940,43478013360, 163606061280,617094776844,2332666266954, 8835573652892] |