n | a(n) |
---|---|
1 | 0 |
2 | 3 |
3 | 3 |
4 | 6 |
5 | 15 |
6 | 27 |
7 | 54 |
8 | 117 |
9 | 237 |
10 | 508 |
11 | 1073 |
12 | 2261 |
13 | 4852 |
14 | 10375 |
15 | 22175 |
16 | 47602 |
17 | 102187 |
18 | 219583 |
19 | 472170 |
20 | 1015449 |
21 | 2185065 |
22 | 4703176 |
23 | 10124077 |
24 | 21797129 |
25 | 46934664 |
26 | 101069563 |
27 | 217658203 |
28 | 468756814 |
29 | 1009568519 |
30 | 2174384483 |
31 | 4683219582 |
[0,3,3,6,15,27,54,117,237,508,1073,2261,4852, 10375,22175,47602,102187,219583,472170,1015449, 2185065,4703176,10124077,21797129,46934664, 101069563,217658203,468756814,1009568519, 2174384483,4683219582] |