n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 6 |
3 | 15 |
4 | 33 |
5 | 60 |
6 | 81 |
7 | 189 |
8 | 378 |
9 | 675 |
10 | 459 |
11 | 1107 |
12 | 2349 |
13 | 4509 |
14 | 7992 |
15 | 2673 |
16 | 6588 |
17 | 14553 |
18 | 29403 |
19 | 55188 |
20 | 97416 |
21 | 15849 |
22 | 39663 |
23 | 90207 |
24 | 189351 |
25 | 371358 |
26 | 687258 |
27 | 1209951 |
28 | 95175 |
29 | 240894 |
30 | 560115 |
31 | 1211031 |
32 | 2458998 |
33 | 4727565 |
34 | 8664813 |
35 | 15227190 |
36 | 576963 |
37 | 1473147 |
38 | 3485187 |
[1,3,6,15,33,60,81,189,378,675,459,1107,2349,4509, 7992,2673,6588,14553,29403,55188,97416,15849, 39663,90207,189351,371358,687258,1209951,95175, 240894,560115,1211031,2458998,4727565,8664813, 15227190,576963,1473147,3485187] |