n | a(n) |
---|---|
8 | 1 |
9 | 9 |
10 | 54 |
11 | 279 |
12 | 1334 |
13 | 6092 |
14 | 27048 |
15 | 117896 |
16 | 507173 |
17 | 2160151 |
18 | 9128266 |
19 | 38326830 |
20 | 160063712 |
21 | 665442560 |
22 | 2755685897 |
23 | 11372798741 |
24 | 46794914849 |
25 | 192029181971 |
26 | 786126469079 |
27 | 3211253947191 |
28 | 13091799706905 |
29 | 53277016211285 |
30 | 216451122516387 |
31 | 878040805034630 |
[1,9,54,279,1334,6092,27048,117896,507173,2160151, 9128266,38326830,160063712,665442560,2755685897, 11372798741,46794914849,192029181971,786126469079, 3211253947191,13091799706905,53277016211285, 216451122516387,878040805034630] |