n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 19 |
5 | 46 |
6 | 100 |
7 | 218 |
8 | 460 |
9 | 965 |
10 | 1975 |
11 | 3993 |
12 | 7975 |
13 | 15712 |
14 | 30650 |
15 | 59150 |
16 | 113093 |
17 | 214300 |
18 | 402812 |
19 | 751165 |
20 | 1390714 |
21 | 2557004 |
22 | 4670770 |
23 | 8479232 |
24 | 15302657 |
25 | 27462424 |
26 | 49021252 |
27 | 87057783 |
28 | 153850769 |
29 | 270614429 |
30 | 473850031 |
31 | 826125184 |
32 | 1434286323 |
33 | 2480145226 |
[1,1,3,9,19,46,100,218,460,965,1975,3993,7975, 15712,30650,59150,113093,214300,402812,751165, 1390714,2557004,4670770,8479232,15302657,27462424, 49021252,87057783,153850769,270614429,473850031, 826125184,1434286323,2480145226] |