n | a(n) |
---|---|
1 | 21 |
2 | 441 |
3 | 3609 |
4 | 20662 |
5 | 139307 |
6 | 1181340 |
7 | 9908740 |
8 | 75877068 |
9 | 567455273 |
10 | 4366586742 |
11 | 34248998327 |
12 | 267095931282 |
13 | 2063862354490 |
14 | 15938318691269 |
15 | 123521439902876 |
16 | 958572046267137 |
17 | 7431458286122944 |
18 | 57564941872885645 |
19 | 445967087965474764 |
[21,441,3609,20662,139307,1181340,9908740, 75877068,567455273,4366586742,34248998327, 267095931282,2063862354490,15938318691269, 123521439902876,958572046267137,7431458286122944, 57564941872885645,445967087965474764] |