n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 4 |
4 | 11 |
5 | 31 |
6 | 98 |
7 | 316 |
8 | 1065 |
9 | 3649 |
10 | 12775 |
11 | 45299 |
12 | 162713 |
13 | 590097 |
14 | 2159015 |
15 | 7957003 |
16 | 29517141 |
17 | 110116277 |
18 | 412879256 |
19 | 1555048142 |
20 | 5880591163 |
21 | 22319380999 |
22 | 84992915958 |
23 | 324634976440 |
24 | 1243396473153 |
25 | 4774504667881 |
26 | 18376620653851 |
27 | 70883537152927 |
[1,1,2,4,11,31,98,316,1065,3649,12775,45299, 162713,590097,2159015,7957003,29517141,110116277, 412879256,1555048142,5880591163,22319380999, 84992915958,324634976440,1243396473153, 4774504667881,18376620653851,70883537152927] |