n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 5 |
7 | 4 |
8 | 18 |
9 | 19 |
10 | 72 |
11 | 72 |
12 | 268 |
13 | 276 |
14 | 1002 |
15 | 1043 |
16 | 3733 |
17 | 3926 |
18 | 14000 |
19 | 14810 |
20 | 52658 |
21 | 55987 |
22 | 199020 |
23 | 212364 |
24 | 754826 |
25 | 807861 |
26 | 2872926 |
27 | 3082202 |
28 | 10966333 |
29 | 11789248 |
30 | 41970489 |
31 | 45198317 |
32 | 160996986 |
33 | 173640109 |
34 | 618839771 |
35 | 668316169 |
36 | 2383000591 |
37 | 2576516523 |
38 | 9191269314 |
39 | 9947949563 |
40 | 35502661446 |
[0,0,0,1,1,5,4,18,19,72,72,268,276,1002,1043,3733, 3926,14000,14810,52658,55987,199020,212364,754826, 807861,2872926,3082202,10966333,11789248,41970489, 45198317,160996986,173640109,618839771,668316169, 2383000591,2576516523,9191269314,9947949563, 35502661446] |