n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 5 |
6 | 15 |
7 | 35 |
8 | 70 |
9 | 124 |
10 | 200 |
11 | 300 |
12 | 445 |
13 | 627 |
14 | 875 |
15 | 1189 |
16 | 1564 |
17 | 2006 |
18 | 2568 |
19 | 3225 |
20 | 4035 |
21 | 4972 |
22 | 6030 |
23 | 7250 |
24 | 8701 |
25 | 10323 |
26 | 12156 |
27 | 14235 |
28 | 16554 |
29 | 19124 |
30 | 22072 |
31 | 25250 |
32 | 28863 |
33 | 32827 |
34 | 37166 |
35 | 41949 |
36 | 47142 |
37 | 52653 |
38 | 58794 |
39 | 65503 |
40 | 72741 |
41 | 80437 |
[0,0,0,1,5,15,35,70,124,200,300,445,627,875,1189, 1564,2006,2568,3225,4035,4972,6030,7250,8701, 10323,12156,14235,16554,19124,22072,25250,28863, 32827,37166,41949,47142,52653,58794,65503,72741, 80437] |