n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 9 |
4 | 121 |
5 | 252 |
6 | 484 |
7 | 10201 |
8 | 12321 |
9 | 14641 |
10 | 20502 |
11 | 23632 |
12 | 26962 |
13 | 40804 |
14 | 44944 |
15 | 1002001 |
16 | 1113111 |
17 | 1226221 |
18 | 1234321 |
19 | 1357531 |
20 | 2005002 |
21 | 2126212 |
22 | 2216122 |
23 | 2249422 |
24 | 2347432 |
25 | 2429242 |
26 | 4008004 |
27 | 4229224 |
28 | 100020001 |
[0,1,4,9,121,252,484,10201,12321,14641,20502, 23632,26962,40804,44944,1002001,1113111,1226221, 1234321,1357531,2005002,2126212,2216122,2249422, 2347432,2429242,4008004,4229224,100020001] |