n | a(n) |
---|---|
6 | 1 |
7 | 18 |
8 | 171 |
9 | 1158 |
10 | 6309 |
11 | 29466 |
12 | 122580 |
13 | 465738 |
14 | 1644516 |
15 | 5464892 |
16 | 17253369 |
17 | 52128540 |
18 | 151592391 |
19 | 426265836 |
20 | 1163373243 |
21 | 3091338000 |
22 | 8018585046 |
23 | 20348618814 |
24 | 50615278427 |
25 | 123608650182 |
26 | 296794147017 |
27 | 701525018576 |
28 | 1634144413185 |
29 | 3755097200094 |
30 | 8519488746222 |
[1,18,171,1158,6309,29466,122580,465738,1644516, 5464892,17253369,52128540,151592391,426265836, 1163373243,3091338000,8018585046,20348618814, 50615278427,123608650182,296794147017, 701525018576,1634144413185,3755097200094, 8519488746222] |