n | a(n) |
---|---|
0 | 1 |
1 | 9 |
2 | 63 |
3 | 585 |
4 | 3951 |
5 | 38169 |
6 | 246303 |
7 | 2501865 |
8 | 15231951 |
9 | 164902329 |
10 | 931798143 |
11 | 10941169545 |
12 | 56148296751 |
13 | 731615910489 |
14 | 3311061455583 |
15 | 49365284099625 |
16 | 189031140702351 |
17 | 3365269314470649 |
18 | 10244972816098623 |
19 | 232054417825788105 |
[1,9,63,585,3951,38169,246303,2501865,15231951, 164902329,931798143,10941169545,56148296751, 731615910489,3311061455583,49365284099625, 189031140702351,3365269314470649, 10244972816098623,232054417825788105] |