n | a(n) |
---|---|
0 | 0 |
1 | 3 |
2 | 12 |
3 | 35 |
4 | 90 |
5 | 217 |
6 | 504 |
7 | 1143 |
8 | 2550 |
9 | 5621 |
10 | 12276 |
11 | 26611 |
12 | 57330 |
13 | 122865 |
14 | 262128 |
15 | 557039 |
16 | 1179630 |
17 | 2490349 |
18 | 5242860 |
19 | 11010027 |
20 | 23068650 |
21 | 48234473 |
22 | 100663272 |
23 | 209715175 |
24 | 436207590 |
25 | 905969637 |
26 | 1879048164 |
27 | 3892314083 |
28 | 8053063650 |
29 | 16642998241 |
30 | 34359738336 |
[0,3,12,35,90,217,504,1143,2550,5621,12276,26611, 57330,122865,262128,557039,1179630,2490349, 5242860,11010027,23068650,48234473,100663272, 209715175,436207590,905969637,1879048164, 3892314083,8053063650,16642998241,34359738336] |