n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 4 |
6 | 10 |
7 | 20 |
8 | 40 |
9 | 70 |
10 | 112 |
11 | 176 |
12 | 261 |
13 | 372 |
14 | 520 |
15 | 704 |
16 | 935 |
17 | 1220 |
18 | 1560 |
19 | 1976 |
20 | 2464 |
21 | 3038 |
22 | 3710 |
23 | 4480 |
24 | 5376 |
25 | 6392 |
26 | 7548 |
27 | 8856 |
28 | 10320 |
29 | 11970 |
30 | 13800 |
31 | 15840 |
32 | 18095 |
33 | 20580 |
34 | 23320 |
35 | 26312 |
36 | 29601 |
37 | 33176 |
38 | 37072 |
39 | 41300 |
40 | 45875 |
41 | 50830 |
42 | 56160 |
43 | 61920 |
44 | 68096 |
45 | 74732 |
[0,0,0,1,4,10,20,40,70,112,176,261,372,520,704, 935,1220,1560,1976,2464,3038,3710,4480,5376,6392, 7548,8856,10320,11970,13800,15840,18095,20580, 23320,26312,29601,33176,37072,41300,45875,50830, 56160,61920,68096,74732] |