n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 2 |
5 | 5 |
6 | 16 |
7 | 30 |
8 | 63 |
9 | 108 |
10 | 189 |
11 | 298 |
12 | 483 |
13 | 720 |
14 | 1092 |
15 | 1582 |
16 | 2297 |
17 | 3225 |
18 | 4551 |
19 | 6244 |
20 | 8592 |
21 | 11590 |
22 | 15622 |
23 | 20741 |
24 | 27536 |
25 | 36066 |
26 | 47198 |
27 | 61150 |
28 | 79077 |
29 | 101391 |
30 | 129808 |
31 | 164934 |
32 | 209213 |
33 | 263745 |
34 | 331807 |
35 | 415229 |
36 | 518656 |
37 | 644719 |
38 | 799926 |
39 | 988432 |
40 | 1218979 |
[0,0,0,2,5,16,30,63,108,189,298,483,720,1092,1582, 2297,3225,4551,6244,8592,11590,15622,20741,27536, 36066,47198,61150,79077,101391,129808,164934, 209213,263745,331807,415229,518656,644719,799926, 988432,1218979] |