n | a(n) |
---|---|
1 | 6 |
2 | 21 |
3 | 105 |
4 | 301 |
5 | 1221 |
6 | 2041 |
7 | 4641 |
8 | 6517 |
9 | 11661 |
10 | 23577 |
11 | 28861 |
12 | 49321 |
13 | 67281 |
14 | 77701 |
15 | 101661 |
16 | 146121 |
17 | 201957 |
18 | 223321 |
19 | 296341 |
20 | 352941 |
21 | 383761 |
22 | 486877 |
23 | 564981 |
24 | 697137 |
25 | 903361 |
26 | 1020201 |
27 | 1082221 |
28 | 1213701 |
29 | 1283257 |
30 | 1430241 |
31 | 2032381 |
32 | 2231061 |
33 | 2552721 |
34 | 2666437 |
[6,21,105,301,1221,2041,4641,6517,11661,23577, 28861,49321,67281,77701,101661,146121,201957, 223321,296341,352941,383761,486877,564981,697137, 903361,1020201,1082221,1213701,1283257,1430241, 2032381,2231061,2552721,2666437] |