n | a(n) |
---|---|
0 | 1 |
1 | 21 |
2 | 141 |
3 | 521 |
4 | 1401 |
5 | 3101 |
6 | 6021 |
7 | 10641 |
8 | 17521 |
9 | 27301 |
10 | 40701 |
11 | 58521 |
12 | 81641 |
13 | 111021 |
14 | 147701 |
15 | 192801 |
16 | 247521 |
17 | 313141 |
18 | 391021 |
19 | 482601 |
20 | 589401 |
21 | 713021 |
22 | 855141 |
23 | 1017521 |
24 | 1202001 |
25 | 1410501 |
26 | 1645021 |
27 | 1907641 |
28 | 2200521 |
29 | 2525901 |
30 | 2886101 |
31 | 3283521 |
[1,21,141,521,1401,3101,6021,10641,17521,27301, 40701,58521,81641,111021,147701,192801,247521, 313141,391021,482601,589401,713021,855141,1017521, 1202001,1410501,1645021,1907641,2200521,2525901, 2886101,3283521] |