n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 9 |
3 | 49 |
4 | 361 |
5 | 2601 |
6 | 19881 |
7 | 154449 |
8 | 1225449 |
9 | 9853321 |
10 | 80156209 |
11 | 658076409 |
12 | 5444816521 |
13 | 45343869481 |
14 | 379735715529 |
15 | 3195538786449 |
16 | 27004932177129 |
17 | 229066136374761 |
18 | 1949470542590481 |
19 | 16640188083903609 |
20 | 142415188146838161 |
[1,1,9,49,361,2601,19881,154449,1225449,9853321, 80156209,658076409,5444816521,45343869481, 379735715529,3195538786449,27004932177129, 229066136374761,1949470542590481, 16640188083903609,142415188146838161] |