n | a(n) |
---|---|
1 | 3 |
2 | 6 |
3 | 13 |
4 | 27 |
5 | 57 |
6 | 119 |
7 | 250 |
8 | 523 |
9 | 1097 |
10 | 2297 |
11 | 4815 |
12 | 10086 |
13 | 21137 |
14 | 44283 |
15 | 92793 |
16 | 194419 |
17 | 407378 |
18 | 853559 |
19 | 1788481 |
20 | 3747361 |
21 | 7851867 |
22 | 16451910 |
23 | 34471669 |
24 | 72228171 |
25 | 151339401 |
26 | 317100335 |
27 | 664418698 |
28 | 1392152131 |
29 | 2916968489 |
30 | 6111905849 |
[3,6,13,27,57,119,250,523,1097,2297,4815,10086, 21137,44283,92793,194419,407378,853559,1788481, 3747361,7851867,16451910,34471669,72228171, 151339401,317100335,664418698,1392152131, 2916968489,6111905849] |