n | a(n) |
---|---|
1 | 2 |
2 | 8 |
3 | 34 |
4 | 140 |
5 | 574 |
6 | 2348 |
7 | 9598 |
8 | 39224 |
9 | 160282 |
10 | 654944 |
11 | 2676202 |
12 | 10935332 |
13 | 44683222 |
14 | 182581508 |
15 | 746051878 |
16 | 3048465200 |
17 | 12456425842 |
18 | 50898577976 |
19 | 207978216754 |
20 | 849826072316 |
21 | 3472499977390 |
22 | 14189087019740 |
23 | 57978456949582 |
[2,8,34,140,574,2348,9598,39224,160282,654944, 2676202,10935332,44683222,182581508,746051878, 3048465200,12456425842,50898577976,207978216754, 849826072316,3472499977390,14189087019740, 57978456949582] |