n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 19 |
3 | 138 |
4 | 1072 |
5 | 8661 |
6 | 71758 |
7 | 605094 |
8 | 5169286 |
9 | 44605527 |
10 | 387969346 |
11 | 3396331158 |
12 | 29891385937 |
13 | 264264469542 |
14 | 2345319267553 |
15 | 20883723678234 |
16 | 186497307222706 |
17 | 1669724703219384 |
18 | 14983025158691938 |
19 | 134719748524295094 |
20 | 1213531265862339751 |
[1,3,19,138,1072,8661,71758,605094,5169286, 44605527,387969346,3396331158,29891385937, 264264469542,2345319267553,20883723678234, 186497307222706,1669724703219384, 14983025158691938,134719748524295094, 1213531265862339751] |