n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 7 |
3 | 54 |
4 | 419 |
5 | 3644 |
6 | 33366 |
7 | 317672 |
8 | 3113559 |
9 | 31200060 |
10 | 318219653 |
11 | 3292546660 |
12 | 34475311605 |
13 | 364621943538 |
14 | 3889561661610 |
15 | 41799988930926 |
16 | 452126713579192 |
17 | 4918321519144206 |
18 | 53773399008883695 |
19 | 590578523863692086 |
20 | 6512515698908748358 |
[1,2,7,54,419,3644,33366,317672,3113559,31200060, 318219653,3292546660,34475311605,364621943538, 3889561661610,41799988930926,452126713579192, 4918321519144206,53773399008883695, 590578523863692086,6512515698908748358] |