n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 0 |
5 | 0 |
6 | 0 |
7 | 0 |
8 | 0 |
9 | 0 |
10 | 0 |
11 | 0 |
12 | 1 |
13 | 3 |
14 | 9 |
15 | 20 |
16 | 42 |
17 | 78 |
18 | 139 |
19 | 231 |
20 | 372 |
21 | 573 |
22 | 861 |
23 | 1254 |
24 | 1791 |
25 | 2499 |
26 | 3432 |
27 | 4629 |
28 | 6162 |
29 | 8085 |
30 | 10492 |
31 | 13455 |
32 | 17094 |
33 | 21503 |
34 | 26832 |
35 | 33201 |
36 | 40795 |
37 | 49764 |
38 | 60333 |
39 | 72687 |
40 | 87096 |
41 | 103785 |
42 | 123075 |
43 | 145236 |
44 | 170646 |
45 | 199626 |
46 | 232617 |
47 | 269997 |
48 | 312277 |
49 | 359898 |
50 | 413448 |
51 | 473438 |
52 | 540540 |
53 | 615342 |
54 | 698608 |
[0,0,0,0,0,0,0,0,0,0,0,0,1,3,9,20,42,78,139,231, 372,573,861,1254,1791,2499,3432,4629,6162,8085, 10492,13455,17094,21503,26832,33201,40795,49764, 60333,72687,87096,103785,123075,145236,170646, 199626,232617,269997,312277,359898,413448,473438, 540540,615342,698608] |