n | a(n) |
---|---|
0 | 1 |
1 | 25 |
2 | 324 |
3 | 2900 |
4 | 20149 |
5 | 115805 |
6 | 572975 |
7 | 2507895 |
8 | 9904050 |
9 | 35818770 |
10 | 120016066 |
11 | 376029250 |
12 | 1110031585 |
13 | 3106677225 |
14 | 8286768736 |
15 | 21161266240 |
16 | 51931463950 |
17 | 122883804990 |
18 | 281186004075 |
19 | 623785796595 |
20 | 1344621849285 |
21 | 2822018693325 |
[1,25,324,2900,20149,115805,572975,2507895, 9904050,35818770,120016066,376029250,1110031585, 3106677225,8286768736,21161266240,51931463950, 122883804990,281186004075,623785796595, 1344621849285,2822018693325] |