n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 12 |
5 | 28 |
6 | 64 |
7 | 145 |
8 | 328 |
9 | 743 |
10 | 1686 |
11 | 3830 |
12 | 8704 |
13 | 19781 |
14 | 44950 |
15 | 102133 |
16 | 232048 |
17 | 527208 |
18 | 1197808 |
19 | 2721421 |
20 | 6183108 |
21 | 14048151 |
22 | 31917714 |
23 | 72517738 |
24 | 164761792 |
25 | 374342057 |
26 | 850512458 |
27 | 1932380869 |
28 | 4390407092 |
29 | 9975090996 |
30 | 22663602720 |
31 | 51492150953 |
[0,1,2,5,12,28,64,145,328,743,1686,3830,8704, 19781,44950,102133,232048,527208,1197808,2721421, 6183108,14048151,31917714,72517738,164761792, 374342057,850512458,1932380869,4390407092, 9975090996,22663602720,51492150953] |