n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 3 |
6 | 6 |
7 | 10 |
8 | 15 |
9 | 22 |
10 | 31 |
11 | 42 |
12 | 55 |
13 | 70 |
14 | 87 |
15 | 107 |
16 | 130 |
17 | 156 |
18 | 185 |
19 | 217 |
20 | 253 |
21 | 293 |
22 | 337 |
23 | 385 |
24 | 437 |
25 | 493 |
26 | 554 |
27 | 620 |
28 | 691 |
29 | 767 |
30 | 848 |
31 | 935 |
32 | 1028 |
33 | 1127 |
34 | 1232 |
35 | 1343 |
36 | 1460 |
37 | 1584 |
38 | 1715 |
39 | 1853 |
40 | 1998 |
41 | 2150 |
42 | 2310 |
43 | 2478 |
44 | 2654 |
45 | 2838 |
46 | 3030 |
47 | 3230 |
48 | 3439 |
49 | 3657 |
50 | 3884 |
[0,0,0,0,1,3,6,10,15,22,31,42,55,70,87,107,130, 156,185,217,253,293,337,385,437,493,554,620,691, 767,848,935,1028,1127,1232,1343,1460,1584,1715, 1853,1998,2150,2310,2478,2654,2838,3030,3230,3439, 3657,3884] |