n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 7 |
5 | 18 |
6 | 42 |
7 | 98 |
8 | 222 |
9 | 497 |
10 | 1100 |
11 | 2413 |
12 | 5250 |
13 | 11350 |
14 | 24398 |
15 | 52193 |
16 | 111180 |
17 | 235949 |
18 | 499074 |
19 | 1052502 |
20 | 2213710 |
21 | 4644833 |
22 | 9724492 |
23 | 20318637 |
24 | 42376578 |
25 | 88231765 |
26 | 183420748 |
27 | 380755932 |
28 | 789340736 |
29 | 1634339217 |
30 | 3379993922 |
31 | 6982618822 |
32 | 14410499598 |
33 | 29711523105 |
[0,0,1,3,7,18,42,98,222,497,1100,2413,5250,11350, 24398,52193,111180,235949,499074,1052502,2213710, 4644833,9724492,20318637,42376578,88231765, 183420748,380755932,789340736,1634339217, 3379993922,6982618822,14410499598,29711523105] |