n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 57 |
6 | 211 |
7 | 890 |
8 | 4161 |
9 | 21181 |
10 | 116030 |
11 | 678659 |
12 | 4213741 |
13 | 27644670 |
14 | 190899699 |
15 | 1382959155 |
16 | 10480143134 |
17 | 82864871401 |
18 | 682076808743 |
19 | 5832742209238 |
20 | 51724158242137 |
21 | 474869816167697 |
22 | 4506715738465034 |
23 | 44152005855113003 |
24 | 445958869294851657 |
25 | 4638590332230074378 |
[1,2,3,7,18,57,211,890,4161,21181,116030,678659, 4213741,27644670,190899699,1382959155,10480143134, 82864871401,682076808743,5832742209238, 51724158242137,474869816167697,4506715738465034, 44152005855113003,445958869294851657, 4638590332230074378] |