n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 20 |
4 | 40 |
5 | 77 |
6 | 147 |
7 | 282 |
8 | 546 |
9 | 1067 |
10 | 2101 |
11 | 4160 |
12 | 8268 |
13 | 16473 |
14 | 32871 |
15 | 65654 |
16 | 131206 |
17 | 262295 |
18 | 524457 |
19 | 1048764 |
20 | 2097360 |
21 | 4194533 |
22 | 8388859 |
23 | 16777490 |
24 | 33554730 |
25 | 67109187 |
26 | 134218077 |
27 | 268435832 |
28 | 536871316 |
29 | 1073742257 |
30 | 2147484111 |
[3,9,20,40,77,147,282,546,1067,2101,4160,8268, 16473,32871,65654,131206,262295,524457,1048764, 2097360,4194533,8388859,16777490,33554730, 67109187,134218077,268435832,536871316,1073742257, 2147484111] |