n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 14 |
4 | 42 |
5 | 103 |
6 | 289 |
7 | 690 |
8 | 1771 |
9 | 4206 |
10 | 10142 |
11 | 23449 |
12 | 54786 |
13 | 123528 |
14 | 279480 |
15 | 619206 |
16 | 1366405 |
17 | 2969071 |
18 | 6425534 |
19 | 13727775 |
20 | 29187555 |
21 | 61439660 |
22 | 128620370 |
23 | 267044222 |
24 | 551527679 |
25 | 1130806020 |
26 | 2306746335 |
27 | 4676096006 |
28 | 9432394144 |
29 | 18920266428 |
30 | 37776372312 |
[1,1,5,14,42,103,289,690,1771,4206,10142,23449, 54786,123528,279480,619206,1366405,2969071, 6425534,13727775,29187555,61439660,128620370, 267044222,551527679,1130806020,2306746335, 4676096006,9432394144,18920266428,37776372312] |