n | a(n) |
---|---|
1 | 1 |
2 | 4 |
3 | 11 |
4 | 30 |
5 | 83 |
6 | 234 |
7 | 671 |
8 | 1950 |
9 | 5723 |
10 | 16914 |
11 | 50231 |
12 | 149670 |
13 | 446963 |
14 | 1336794 |
15 | 4002191 |
16 | 11990190 |
17 | 35937803 |
18 | 107747874 |
19 | 323112551 |
20 | 969075510 |
21 | 2906702243 |
22 | 8719058154 |
23 | 26155077311 |
24 | 78461037630 |
25 | 235374724283 |
26 | 706107395634 |
27 | 2118288632471 |
28 | 6354798788550 |
[1,4,11,30,83,234,671,1950,5723,16914,50231, 149670,446963,1336794,4002191,11990190,35937803, 107747874,323112551,969075510,2906702243, 8719058154,26155077311,78461037630,235374724283, 706107395634,2118288632471,6354798788550] |