n | a(n) |
---|---|
1 | 0 |
2 | 5 |
3 | 5 |
4 | 11 |
5 | 22 |
6 | 102 |
7 | 390 |
8 | 1990 |
9 | 8875 |
10 | 42338 |
11 | 200422 |
12 | 1001873 |
13 | 4864576 |
14 | 24344988 |
15 | 120791381 |
16 | 599718216 |
17 | 2979586795 |
18 | 14824136258 |
19 | 73594777737 |
20 | 365973623961 |
21 | 1819455689317 |
22 | 9043962959653 |
23 | 44964812729586 |
24 | 223577501339948 |
[0,5,5,11,22,102,390,1990,8875,42338,200422, 1001873,4864576,24344988,120791381,599718216, 2979586795,14824136258,73594777737,365973623961, 1819455689317,9043962959653,44964812729586, 223577501339948] |