n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 10 |
4 | 44 |
5 | 197 |
6 | 1228 |
7 | 7692 |
8 | 52828 |
9 | 373636 |
10 | 2735952 |
11 | 20506258 |
12 | 156922676 |
13 | 1221179926 |
14 | 9642496488 |
15 | 77092885016 |
16 | 623121750844 |
17 | 5085013101164 |
18 | 41850600967984 |
19 | 347060754685888 |
20 | 2897800158952304 |
21 | 24344668688424333 |
22 | 205667187527660076 |
23 | 1746375819789491996 |
24 | 14898241072028602276 |
[1,1,4,10,44,197,1228,7692,52828,373636,2735952, 20506258,156922676,1221179926,9642496488, 77092885016,623121750844,5085013101164, 41850600967984,347060754685888,2897800158952304, 24344668688424333,205667187527660076, 1746375819789491996,14898241072028602276] |