n | a(n) |
---|---|
1 | 0 |
2 | 0 |
3 | 0 |
4 | 1 |
5 | 1 |
6 | 2 |
7 | 3 |
8 | 6 |
9 | 10 |
10 | 20 |
11 | 36 |
12 | 70 |
13 | 134 |
14 | 263 |
15 | 513 |
16 | 1022 |
17 | 2030 |
18 | 4076 |
19 | 8203 |
20 | 16614 |
21 | 33738 |
22 | 68833 |
23 | 140796 |
24 | 288989 |
25 | 594621 |
26 | 1226781 |
27 | 2536532 |
28 | 5256303 |
29 | 10913196 |
30 | 22700682 |
31 | 47299699 |
32 | 98714362 |
33 | 206323140 |
34 | 431847121 |
35 | 905074333 |
36 | 1899247187 |
37 | 3990145833 |
38 | 8392281473 |
[0,0,0,1,1,2,3,6,10,20,36,70,134,263,513,1022, 2030,4076,8203,16614,33738,68833,140796,288989, 594621,1226781,2536532,5256303,10913196,22700682, 47299699,98714362,206323140,431847121,905074333, 1899247187,3990145833,8392281473] |