n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 8 |
6 | 18 |
7 | 43 |
8 | 102 |
9 | 250 |
10 | 623 |
11 | 1579 |
12 | 4042 |
13 | 10470 |
14 | 27350 |
15 | 72034 |
16 | 190956 |
17 | 509259 |
18 | 1365271 |
19 | 3677522 |
20 | 9947145 |
21 | 27007988 |
22 | 73582758 |
23 | 201103314 |
24 | 551190098 |
25 | 1514683667 |
26 | 4172470962 |
27 | 11519509386 |
28 | 31869341642 |
29 | 88337853393 |
30 | 245301368188 |
31 | 682307613945 |
[0,1,1,2,4,8,18,43,102,250,623,1579,4042,10470, 27350,72034,190956,509259,1365271,3677522,9947145, 27007988,73582758,201103314,551190098,1514683667, 4172470962,11519509386,31869341642,88337853393, 245301368188,682307613945] |