n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 27 |
5 | 121 |
6 | 729 |
7 | 5041 |
8 | 40347 |
9 | 362887 |
10 | 3628923 |
11 | 39916801 |
12 | 479002353 |
13 | 6227020801 |
14 | 87178296243 |
15 | 1307674368127 |
16 | 20922789928347 |
17 | 355687428096001 |
18 | 6402373706091609 |
19 | 121645100408832001 |
20 | 2432902008180268947 |
[0,1,3,7,27,121,729,5041,40347,362887,3628923, 39916801,479002353,6227020801,87178296243, 1307674368127,20922789928347,355687428096001, 6402373706091609,121645100408832001, 2432902008180268947] |