n | a(n) |
---|---|
6 | 1 |
7 | 6 |
8 | 32 |
9 | 152 |
10 | 690 |
11 | 3028 |
12 | 12996 |
13 | 54812 |
14 | 228284 |
15 | 939148 |
16 | 3833076 |
17 | 15487428 |
18 | 62244564 |
19 | 247973928 |
20 | 984221764 |
21 | 3876113404 |
22 | 15223550024 |
23 | 59379645924 |
24 | 231124139318 |
25 | 894157177372 |
26 | 3453279084296 |
27 | 13266154255196 |
28 | 50886266714598 |
29 | 194294744477756 |
30 | 740816697816046 |
[1,6,32,152,690,3028,12996,54812,228284,939148, 3833076,15487428,62244564,247973928,984221764, 3876113404,15223550024,59379645924,231124139318, 894157177372,3453279084296,13266154255196, 50886266714598,194294744477756,740816697816046] |