n | a(n) |
---|---|
4 | 1 |
5 | 3 |
6 | 12 |
7 | 28 |
8 | 93 |
9 | 201 |
10 | 631 |
11 | 1316 |
12 | 4037 |
13 | 8259 |
14 | 25052 |
15 | 50680 |
16 | 152782 |
17 | 306958 |
18 | 921982 |
19 | 1844304 |
20 | 5526849 |
21 | 11024331 |
22 | 32987492 |
23 | 65675764 |
24 | 196323853 |
25 | 390374193 |
26 | 1166171943 |
27 | 2316881892 |
28 | 6918228187 |
29 | 13737041045 |
30 | 41007165500 |
[1,3,12,28,93,201,631,1316,4037,8259,25052,50680, 152782,306958,921982,1844304,5526849,11024331, 32987492,65675764,196323853,390374193,1166171943, 2316881892,6918228187,13737041045,41007165500] |