n | a(n) |
---|---|
1 | 7 |
2 | 49 |
3 | 241 |
4 | 1117 |
5 | 4891 |
6 | 20953 |
7 | 88465 |
8 | 370753 |
9 | 1546879 |
10 | 6437929 |
11 | 26754673 |
12 | 111093277 |
13 | 461065507 |
14 | 1912995217 |
15 | 7935844129 |
16 | 32917778401 |
17 | 136534855735 |
18 | 566294540737 |
19 | 2348729268913 |
20 | 9741340873213 |
21 | 40401894006955 |
22 | 167564911503529 |
[7,49,241,1117,4891,20953,88465,370753,1546879, 6437929,26754673,111093277,461065507,1912995217, 7935844129,32917778401,136534855735,566294540737, 2348729268913,9741340873213,40401894006955, 167564911503529] |