n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 8 |
4 | 19 |
5 | 50 |
6 | 162 |
7 | 576 |
8 | 2469 |
9 | 11218 |
10 | 59984 |
11 | 331432 |
12 | 2120663 |
13 | 13784290 |
14 | 102616622 |
15 | 766648128 |
16 | 6507054537 |
17 | 54919451490 |
18 | 523342287196 |
19 | 4923469621256 |
20 | 52040350449307 |
21 | 539901936037202 |
22 | 6268123599148282 |
[1,2,4,8,19,50,162,576,2469,11218,59984,331432, 2120663,13784290,102616622,766648128,6507054537, 54919451490,523342287196,4923469621256, 52040350449307,539901936037202,6268123599148282] |