n | a(n) |
---|---|
3 | 0 |
4 | 1 |
5 | 1 |
6 | 0 |
7 | 3 |
8 | 0 |
9 | 7 |
10 | 4 |
11 | 42 |
12 | 63 |
13 | 245 |
14 | 469 |
15 | 1392 |
16 | 2850 |
17 | 7536 |
18 | 15797 |
19 | 41646 |
20 | 90054 |
21 | 236923 |
22 | 532734 |
23 | 1388279 |
24 | 3215046 |
25 | 8251196 |
26 | 19482154 |
27 | 49498130 |
28 | 118495071 |
29 | 299326350 |
30 | 724425383 |
31 | 1825167876 |
[0,1,1,0,3,0,7,4,42,63,245,469,1392,2850,7536, 15797,41646,90054,236923,532734,1388279,3215046, 8251196,19482154,49498130,118495071,299326350, 724425383,1825167876] |