n | a(n) |
---|---|
1 | 2 |
2 | 8 |
3 | 26 |
4 | 106 |
5 | 442 |
6 | 1849 |
7 | 7723 |
8 | 32176 |
9 | 133706 |
10 | 554269 |
11 | 2292655 |
12 | 9464547 |
13 | 39002251 |
14 | 160466401 |
15 | 659249461 |
16 | 2704861756 |
17 | 11084629546 |
18 | 45375676501 |
19 | 185562634951 |
20 | 758155908511 |
21 | 3094982778031 |
22 | 12624593782321 |
23 | 51458942047501 |
24 | 209609423940151 |
25 | 853271593454827 |
[2,8,26,106,442,1849,7723,32176,133706,554269, 2292655,9464547,39002251,160466401,659249461, 2704861756,11084629546,45375676501,185562634951, 758155908511,3094982778031,12624593782321, 51458942047501,209609423940151,853271593454827] |