n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 16 |
3 | 146 |
4 | 955 |
5 | 4905 |
6 | 20907 |
7 | 76851 |
8 | 250530 |
9 | 739612 |
10 | 2009177 |
11 | 5085119 |
12 | 12109526 |
13 | 27348478 |
14 | 58955082 |
15 | 121956402 |
16 | 243172488 |
17 | 469115187 |
18 | 878387366 |
19 | 1600751976 |
20 | 2845918041 |
21 | 4946262815 |
22 | 8419256605 |
23 | 14057377245 |
24 | 23055913530 |
25 | 37192403430 |
26 | 59075703351 |
27 | 92488040301 |
[0,1,16,146,955,4905,20907,76851,250530,739612, 2009177,5085119,12109526,27348478,58955082, 121956402,243172488,469115187,878387366, 1600751976,2845918041,4946262815,8419256605, 14057377245,23055913530,37192403430,59075703351, 92488040301] |