n | a(n) |
---|---|
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 10 |
6 | 15 |
7 | 21 |
8 | 28 |
9 | 36 |
10 | 45 |
11 | 55 |
12 | 66 |
13 | 78 |
14 | 91 |
15 | 171 |
16 | 300 |
17 | 595 |
18 | 666 |
19 | 990 |
20 | 1711 |
21 | 2211 |
22 | 3003 |
23 | 5050 |
24 | 5151 |
25 | 5565 |
26 | 5995 |
27 | 6555 |
28 | 8778 |
29 | 10011 |
30 | 66066 |
31 | 222111 |
32 | 255255 |
33 | 333336 |
34 | 500500 |
35 | 600060 |
36 | 828828 |
37 | 887778 |
38 | 1188111 |
39 | 5656566 |
40 | 22221111 |
41 | 50005000 |
42 | 51151555 |
43 | 88877778 |
[0,1,3,6,10,15,21,28,36,45,55,66,78,91,171,300, 595,666,990,1711,2211,3003,5050,5151,5565,5995, 6555,8778,10011,66066,222111,255255,333336,500500, 600060,828828,887778,1188111,5656566,22221111, 50005000,51151555,88877778] |