n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 13 |
3 | 43 |
4 | 269 |
5 | 1213 |
6 | 6427 |
7 | 31387 |
8 | 159651 |
9 | 795611 |
10 | 4005785 |
11 | 20064827 |
12 | 100764343 |
13 | 505375405 |
14 | 2536323145 |
15 | 12724855013 |
16 | 63851706457 |
17 | 320373303983 |
18 | 1607526474153 |
19 | 8065864257905 |
20 | 40471399479495 |
21 | 203068825478591 |
22 | 1018918472214687 |
23 | 5112520236292975 |
24 | 25652573037707685 |
[1,1,13,43,269,1213,6427,31387,159651,795611, 4005785,20064827,100764343,505375405,2536323145, 12724855013,63851706457,320373303983, 1607526474153,8065864257905,40471399479495, 203068825478591,1018918472214687,5112520236292975, 25652573037707685] |