n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 18 |
5 | 34 |
6 | 104 |
7 | 174 |
8 | 510 |
9 | 1082 |
10 | 2714 |
11 | 4658 |
12 | 16316 |
13 | 25634 |
14 | 71978 |
15 | 169258 |
16 | 419878 |
17 | 712386 |
18 | 2349160 |
19 | 3773934 |
20 | 11980874 |
21 | 25033510 |
22 | 59450390 |
23 | 104012646 |
24 | 368769280 |
25 | 625406094 |
26 | 1645569502 |
27 | 3654549058 |
28 | 9504389550 |
29 | 16006708782 |
30 | 55050007424 |
31 | 87063424990 |
[1,1,3,7,18,34,104,174,510,1082,2714,4658,16316, 25634,71978,169258,419878,712386,2349160,3773934, 11980874,25033510,59450390,104012646,368769280, 625406094,1645569502,3654549058,9504389550, 16006708782,55050007424,87063424990] |