n | a(n) |
---|---|
0 | 1 |
1 | 10 |
2 | 44 |
3 | 200 |
4 | 918 |
5 | 4236 |
6 | 19598 |
7 | 90790 |
8 | 420870 |
9 | 1951636 |
10 | 9051480 |
11 | 41983154 |
12 | 194736668 |
13 | 903293618 |
14 | 4190003458 |
15 | 19435777562 |
16 | 90155141564 |
17 | 418195731384 |
18 | 1939853565942 |
19 | 8998257693932 |
20 | 41739569773726 |
21 | 193614349514214 |
[1,10,44,200,918,4236,19598,90790,420870,1951636, 9051480,41983154,194736668,903293618,4190003458, 19435777562,90155141564,418195731384, 1939853565942,8998257693932,41739569773726, 193614349514214] |