n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 18 |
4 | 54 |
5 | 72 |
6 | 405 |
7 | 390 |
8 | 1944 |
9 | 3411 |
10 | 14985 |
11 | 17802 |
12 | 139968 |
13 | 133104 |
14 | 798525 |
15 | 1804518 |
16 | 5454378 |
17 | 8072532 |
18 | 64599849 |
19 | 64573626 |
20 | 437732424 |
21 | 872157294 |
22 | 3138159429 |
23 | 4279259574 |
24 | 35362084140 |
25 | 42364514403 |
26 | 211822562025 |
27 | 423646166250 |
[3,9,18,54,72,405,390,1944,3411,14985,17802, 139968,133104,798525,1804518,5454378,8072532, 64599849,64573626,437732424,872157294,3138159429, 4279259574,35362084140,42364514403,211822562025, 423646166250] |