n | a(n) |
---|---|
0 | 1 |
1 | 248 |
2 | 4124 |
3 | 34752 |
4 | 213126 |
5 | 1057504 |
6 | 4530744 |
7 | 17333248 |
8 | 60655377 |
9 | 197230000 |
10 | 603096260 |
11 | 1749556736 |
12 | 4848776870 |
13 | 12908659008 |
14 | 33161242504 |
15 | 82505707520 |
16 | 199429765972 |
17 | 469556091240 |
18 | 1079330385764 |
19 | 2426800117504 |
20 | 5346409013164 |
[1,248,4124,34752,213126,1057504,4530744,17333248, 60655377,197230000,603096260,1749556736, 4848776870,12908659008,33161242504,82505707520, 199429765972,469556091240,1079330385764, 2426800117504,5346409013164] |