n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 5 |
3 | 13 |
4 | 65 |
5 | 209 |
6 | 1045 |
7 | 3729 |
8 | 18645 |
9 | 70717 |
10 | 353585 |
11 | 1395805 |
12 | 6979025 |
13 | 28339645 |
14 | 141698225 |
15 | 587614085 |
16 | 2938070425 |
17 | 12383615985 |
18 | 61918079925 |
19 | 264376635889 |
20 | 1321883179445 |
21 | 5704016489345 |
22 | 28520082446725 |
23 | 124149831843401 |
24 | 620749159217005 |
25 | 2722238024497961 |
26 | 13611190122489805 |
27 | 60069831193045649 |
[1,1,5,13,65,209,1045,3729,18645,70717,353585, 1395805,6979025,28339645,141698225,587614085, 2938070425,12383615985,61918079925,264376635889, 1321883179445,5704016489345,28520082446725, 124149831843401,620749159217005,2722238024497961, 13611190122489805,60069831193045649] |