n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 11 |
4 | 44 |
5 | 186 |
6 | 810 |
7 | 3582 |
8 | 15952 |
9 | 71242 |
10 | 318441 |
11 | 1423411 |
12 | 6360809 |
13 | 28415254 |
14 | 126900911 |
15 | 566604462 |
16 | 2529439891 |
17 | 11290673434 |
18 | 50394458326 |
19 | 224918228462 |
20 | 1003813933351 |
21 | 4479953995624 |
22 | 19993503244811 |
23 | 89228022987483 |
24 | 398209768217607 |
[1,3,11,44,186,810,3582,15952,71242,318441, 1423411,6360809,28415254,126900911,566604462, 2529439891,11290673434,50394458326,224918228462, 1003813933351,4479953995624,19993503244811, 89228022987483,398209768217607] |