n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 6 |
3 | 9 |
4 | 15 |
5 | 20 |
6 | 28 |
7 | 35 |
8 | 45 |
9 | 54 |
10 | 66 |
11 | 77 |
12 | 91 |
13 | 104 |
14 | 120 |
15 | 135 |
16 | 153 |
17 | 170 |
18 | 190 |
19 | 209 |
20 | 231 |
21 | 252 |
22 | 276 |
23 | 299 |
24 | 325 |
25 | 350 |
26 | 378 |
27 | 405 |
28 | 435 |
29 | 464 |
30 | 496 |
31 | 527 |
32 | 561 |
33 | 594 |
34 | 630 |
35 | 665 |
36 | 703 |
37 | 740 |
38 | 780 |
39 | 819 |
40 | 861 |
41 | 902 |
42 | 946 |
43 | 989 |
44 | 1035 |
45 | 1080 |
46 | 1128 |
47 | 1175 |
48 | 1225 |
49 | 1274 |
50 | 1326 |
51 | 1377 |
52 | 1431 |
53 | 1484 |
[1,2,6,9,15,20,28,35,45,54,66,77,91,104,120,135, 153,170,190,209,231,252,276,299,325,350,378,405, 435,464,496,527,561,594,630,665,703,740,780,819, 861,902,946,989,1035,1080,1128,1175,1225,1274, 1326,1377,1431,1484] |