n | a(n) |
---|---|
1 | 1 |
2 | 15 |
3 | 21 |
4 | 45 |
5 | 55 |
6 | 171 |
7 | 741 |
8 | 1225 |
9 | 1275 |
10 | 1711 |
11 | 2145 |
12 | 2211 |
13 | 2415 |
14 | 2775 |
15 | 5151 |
16 | 11175 |
17 | 15225 |
18 | 21115 |
19 | 22155 |
20 | 25425 |
21 | 44551 |
22 | 45451 |
23 | 72771 |
24 | 77421 |
25 | 112575 |
26 | 121771 |
27 | 124251 |
28 | 125751 |
29 | 151525 |
30 | 211575 |
31 | 221445 |
32 | 222111 |
33 | 224115 |
34 | 227475 |
35 | 254541 |
36 | 255255 |
37 | 417241 |
38 | 451725 |
39 | 551775 |
40 | 577275 |
[1,15,21,45,55,171,741,1225,1275,1711,2145,2211, 2415,2775,5151,11175,15225,21115,22155,25425, 44551,45451,72771,77421,112575,121771,124251, 125751,151525,211575,221445,222111,224115,227475, 254541,255255,417241,451725,551775,577275] |