n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 2 |
6 | 9 |
7 | 16 |
8 | 53 |
9 | 90 |
10 | 265 |
11 | 440 |
12 | 1221 |
13 | 2002 |
14 | 5369 |
15 | 8736 |
16 | 22933 |
17 | 37130 |
18 | 96105 |
19 | 155080 |
20 | 397541 |
21 | 640002 |
22 | 1629529 |
23 | 2619056 |
24 | 6636213 |
25 | 10653370 |
26 | 26899145 |
27 | 43144920 |
28 | 108659461 |
29 | 174174002 |
30 | 437826489 |
31 | 701478976 |
32 | 1760871893 |
33 | 2820264810 |
34 | 7072185385 |
35 | 11324105960 |
36 | 28374834981 |
37 | 45425564002 |
38 | 113757620249 |
[0,0,0,0,1,2,9,16,53,90,265,440,1221,2002,5369, 8736,22933,37130,96105,155080,397541,640002, 1629529,2619056,6636213,10653370,26899145, 43144920,108659461,174174002,437826489,701478976, 1760871893,2820264810,7072185385,11324105960, 28374834981,45425564002,113757620249] |