n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 10 |
6 | 15 |
7 | 21 |
8 | 27 |
9 | 34 |
10 | 42 |
11 | 51 |
12 | 61 |
13 | 72 |
14 | 84 |
15 | 96 |
16 | 109 |
17 | 123 |
18 | 138 |
19 | 154 |
20 | 171 |
21 | 189 |
22 | 207 |
23 | 226 |
24 | 246 |
25 | 267 |
26 | 289 |
27 | 312 |
28 | 336 |
29 | 360 |
30 | 385 |
31 | 411 |
32 | 438 |
33 | 466 |
34 | 495 |
35 | 525 |
36 | 555 |
37 | 586 |
38 | 618 |
39 | 651 |
40 | 685 |
41 | 720 |
42 | 756 |
43 | 792 |
44 | 829 |
45 | 867 |
46 | 906 |
47 | 946 |
48 | 987 |
49 | 1029 |
50 | 1071 |
51 | 1114 |
52 | 1158 |
53 | 1203 |
54 | 1249 |
[0,0,1,3,6,10,15,21,27,34,42,51,61,72,84,96,109, 123,138,154,171,189,207,226,246,267,289,312,336, 360,385,411,438,466,495,525,555,586,618,651,685, 720,756,792,829,867,906,946,987,1029,1071,1114, 1158,1203,1249] |