n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 15 |
3 | 132 |
4 | 1565 |
5 | 22918 |
6 | 400939 |
7 | 8160008 |
8 | 189453369 |
9 | 4942271754 |
10 | 143128015943 |
11 | 4556517918604 |
12 | 158167223290453 |
13 | 5945611873120910 |
14 | 240619359452963427 |
15 | 10430922482219093520 |
16 | 482234053313600047217 |
17 | 23683786738296923795986 |
[1,2,15,132,1565,22918,400939,8160008,189453369, 4942271754,143128015943,4556517918604, 158167223290453,5945611873120910, 240619359452963427,10430922482219093520, 482234053313600047217,23683786738296923795986] |