n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 6 |
3 | 31 |
4 | 68 |
5 | 235 |
6 | 303 |
7 | 538 |
8 | 841 |
9 | 8107 |
10 | 8948 |
11 | 17055 |
12 | 26003 |
13 | 95064 |
14 | 216131 |
15 | 1175719 |
16 | 6094726 |
17 | 7270445 |
18 | 442321426 |
19 | 449591871 |
20 | 2690280781 |
21 | 13900995776 |
22 | 30492272333 |
23 | 105377812775 |
24 | 135870085108 |
25 | 241247897883 |
26 | 377117982991 |
27 | 3635309744802 |
28 | 4012427727793 |
[1,1,6,31,68,235,303,538,841,8107,8948,17055, 26003,95064,216131,1175719,6094726,7270445, 442321426,449591871,2690280781,13900995776, 30492272333,105377812775,135870085108, 241247897883,377117982991,3635309744802, 4012427727793] |