n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 12 |
4 | 26 |
5 | 50 |
6 | 97 |
7 | 180 |
8 | 332 |
9 | 600 |
10 | 1076 |
11 | 1908 |
12 | 3361 |
13 | 5878 |
14 | 10226 |
15 | 17700 |
16 | 30510 |
17 | 52390 |
18 | 89665 |
19 | 153000 |
20 | 260376 |
21 | 442032 |
22 | 748776 |
23 | 1265832 |
24 | 2136001 |
25 | 3598250 |
26 | 6052062 |
27 | 10164540 |
28 | 17048642 |
[1,2,6,12,26,50,97,180,332,600,1076,1908,3361, 5878,10226,17700,30510,52390,89665,153000,260376, 442032,748776,1265832,2136001,3598250,6052062, 10164540,17048642] |