n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 9 |
4 | 31 |
5 | 53 |
6 | 141 |
7 | 380 |
8 | 1010 |
9 | 2152 |
10 | 5014 |
11 | 14018 |
12 | 35542 |
13 | 78385 |
14 | 188789 |
15 | 503051 |
16 | 1241939 |
17 | 2859687 |
18 | 6957672 |
19 | 17863397 |
20 | 43991846 |
21 | 103888178 |
22 | 253531752 |
23 | 640390692 |
24 | 1575397895 |
25 | 3777406958 |
26 | 9259136398 |
27 | 23167497450 |
28 | 57008137128 |
29 | 138220165963 |
[1,7,9,31,53,141,380,1010,2152,5014,14018,35542, 78385,188789,503051,1241939,2859687,6957672, 17863397,43991846,103888178,253531752,640390692, 1575397895,3777406958,9259136398,23167497450, 57008137128,138220165963] |