n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 26 |
3 | 333 |
4 | 1944 |
5 | 7550 |
6 | 22770 |
7 | 57771 |
8 | 129248 |
9 | 262764 |
10 | 495450 |
11 | 879065 |
12 | 1483416 |
13 | 2400138 |
14 | 3746834 |
15 | 5671575 |
16 | 8357760 |
17 | 12029336 |
18 | 16956378 |
19 | 23461029 |
20 | 31923800 |
21 | 42790230 |
22 | 56577906 |
23 | 73883843 |
24 | 95392224 |
25 | 121882500 |
26 | 154237850 |
27 | 193454001 |
[0,0,26,333,1944,7550,22770,57771,129248,262764, 495450,879065,1483416,2400138,3746834,5671575, 8357760,12029336,16956378,23461029,31923800, 42790230,56577906,73883843,95392224,121882500, 154237850,193454001] |