n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 12 |
6 | 27 |
7 | 63 |
8 | 143 |
9 | 315 |
10 | 684 |
11 | 1479 |
12 | 3195 |
13 | 6903 |
14 | 14932 |
15 | 32361 |
16 | 70266 |
17 | 152775 |
18 | 332397 |
19 | 723330 |
20 | 1573829 |
21 | 3423444 |
22 | 7444722 |
23 | 16185939 |
24 | 35185779 |
25 | 76483890 |
26 | 166253545 |
27 | 361396431 |
28 | 785621808 |
29 | 1707884880 |
30 | 3712912632 |
31 | 8071922817 |
32 | 17548551692 |
33 | 38150905170 |
[0,0,1,3,6,12,27,63,143,315,684,1479,3195,6903, 14932,32361,70266,152775,332397,723330,1573829, 3423444,7444722,16185939,35185779,76483890, 166253545,361396431,785621808,1707884880, 3712912632,8071922817,17548551692,38150905170] |