n | a(n) |
---|---|
1 | 3 |
2 | 2 |
3 | 1 |
4 | 1 |
5 | 1 |
6 | 1 |
7 | 2 |
8 | 2 |
9 | 2 |
10 | 3 |
11 | 5 |
12 | 6 |
13 | 10 |
14 | 15 |
15 | 24 |
16 | 41 |
17 | 69 |
18 | 120 |
19 | 215 |
20 | 390 |
21 | 720 |
22 | 1356 |
23 | 2594 |
24 | 5040 |
25 | 9941 |
26 | 19885 |
27 | 40320 |
28 | 82835 |
29 | 172329 |
30 | 362880 |
31 | 773119 |
32 | 1665838 |
33 | 3628800 |
34 | 7988888 |
35 | 17768939 |
36 | 39916800 |
37 | 90540730 |
38 | 207304279 |
39 | 479001600 |
40 | 1116669004 |
41 | 2625854189 |
42 | 6227020800 |
[3,2,1,1,1,1,2,2,2,3,5,6,10,15,24,41,69,120,215, 390,720,1356,2594,5040,9941,19885,40320,82835, 172329,362880,773119,1665838,3628800,7988888, 17768939,39916800,90540730,207304279,479001600, 1116669004,2625854189,6227020800] |