n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 7 |
4 | 44 |
5 | 447 |
6 | 6749 |
7 | 142176 |
8 | 3987677 |
9 | 143698548 |
10 | 6470422337 |
11 | 356016927083 |
12 | 23503587609815 |
13 | 1833635850492653 |
14 | 166884365982441238 |
15 | 17524692064006822643 |
16 | 2103129932046801158398 |
17 | 286043195450428964364771 |
18 | 43766712033847678348968361 |
[1,1,2,7,44,447,6749,142176,3987677,143698548, 6470422337,356016927083,23503587609815, 1833635850492653,166884365982441238, 17524692064006822643,2103129932046801158398, 286043195450428964364771, 43766712033847678348968361] |