n | a(n) |
---|---|
16 | 1 |
17 | 17 |
18 | 153 |
19 | 969 |
20 | 4845 |
21 | 20349 |
22 | 74613 |
23 | 245157 |
24 | 735471 |
25 | 2042975 |
26 | 5311735 |
27 | 13037895 |
28 | 30421755 |
29 | 67863915 |
30 | 145422675 |
31 | 300540195 |
32 | 601080390 |
33 | 1166803110 |
34 | 2203961430 |
35 | 4059928950 |
36 | 7307872110 |
37 | 12875774670 |
38 | 22239974430 |
39 | 37711260990 |
40 | 62852101650 |
41 | 103077446706 |
42 | 166509721602 |
[1,17,153,969,4845,20349,74613,245157,735471, 2042975,5311735,13037895,30421755,67863915, 145422675,300540195,601080390,1166803110, 2203961430,4059928950,7307872110,12875774670, 22239974430,37711260990,62852101650,103077446706, 166509721602] |