n | a(n) |
---|---|
1 | 2 |
2 | 45 |
3 | 182 |
4 | 946 |
5 | 5256 |
6 | 26592 |
7 | 139705 |
8 | 743357 |
9 | 3895564 |
10 | 20551990 |
11 | 108462086 |
12 | 571420486 |
13 | 3013738375 |
14 | 15893704443 |
15 | 83803905400 |
16 | 441952817246 |
17 | 2330642013397 |
18 | 12290475240990 |
19 | 64814511670451 |
20 | 341801050087962 |
21 | 1802496248933719 |
[2,45,182,946,5256,26592,139705,743357,3895564, 20551990,108462086,571420486,3013738375, 15893704443,83803905400,441952817246, 2330642013397,12290475240990,64814511670451, 341801050087962,1802496248933719] |