n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 11 |
3 | 32 |
4 | 90 |
5 | 231 |
6 | 576 |
7 | 1363 |
8 | 3141 |
9 | 7003 |
10 | 15261 |
11 | 32468 |
12 | 67788 |
13 | 138892 |
14 | 280103 |
15 | 556302 |
16 | 1089991 |
17 | 2108332 |
18 | 4030649 |
19 | 7620671 |
20 | 14261450 |
21 | 26431346 |
22 | 48544170 |
23 | 88393064 |
24 | 159654022 |
25 | 286149924 |
26 | 509137464 |
27 | 899603036 |
28 | 1579014769 |
[1,3,11,32,90,231,576,1363,3141,7003,15261,32468, 67788,138892,280103,556302,1089991,2108332, 4030649,7620671,14261450,26431346,48544170, 88393064,159654022,286149924,509137464,899603036, 1579014769] |