n | a(n) |
---|---|
0 | 1 |
1 | 4 |
2 | 17 |
3 | 73 |
4 | 313 |
5 | 1341 |
6 | 5745 |
7 | 24613 |
8 | 105449 |
9 | 451773 |
10 | 1935521 |
11 | 8292309 |
12 | 35526553 |
13 | 152205613 |
14 | 652091089 |
15 | 2793739205 |
16 | 11969154121 |
17 | 51279178141 |
18 | 219694231041 |
19 | 941231059125 |
20 | 4032495084025 |
21 | 17276328107789 |
22 | 74016584439345 |
23 | 317107590101669 |
[1,4,17,73,313,1341,5745,24613,105449,451773, 1935521,8292309,35526553,152205613,652091089, 2793739205,11969154121,51279178141,219694231041, 941231059125,4032495084025,17276328107789, 74016584439345,317107590101669] |