n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 25 |
5 | 60 |
6 | 144 |
7 | 348 |
8 | 841 |
9 | 2030 |
10 | 4900 |
11 | 11830 |
12 | 28561 |
13 | 68952 |
14 | 166464 |
15 | 401880 |
16 | 970225 |
17 | 2342330 |
18 | 5654884 |
19 | 13652098 |
20 | 32959081 |
21 | 79570260 |
22 | 192099600 |
23 | 463769460 |
24 | 1119638521 |
25 | 2703046502 |
26 | 6525731524 |
27 | 15754509550 |
28 | 38034750625 |
29 | 91824010800 |
[1,2,4,10,25,60,144,348,841,2030,4900,11830,28561, 68952,166464,401880,970225,2342330,5654884, 13652098,32959081,79570260,192099600,463769460, 1119638521,2703046502,6525731524,15754509550, 38034750625,91824010800] |