n | a(n) |
---|---|
1 | 1 |
2 | 9 |
3 | 385 |
4 | 1443 |
5 | 11171 |
6 | 65215 |
7 | 673171 |
8 | 4414693 |
9 | 36515720 |
10 | 262644855 |
11 | 2167783248 |
12 | 16326721009 |
13 | 130593495719 |
14 | 1004457623070 |
15 | 7977094417489 |
16 | 62076354573565 |
17 | 490287264598713 |
18 | 3835365581310001 |
19 | 30228295038249915 |
20 | 237124926883181002 |
[1,9,385,1443,11171,65215,673171,4414693,36515720, 262644855,2167783248,16326721009,130593495719, 1004457623070,7977094417489,62076354573565, 490287264598713,3835365581310001, 30228295038249915,237124926883181002] |