n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 4 |
3 | 10 |
4 | 36 |
5 | 202 |
6 | 1827 |
7 | 25509 |
8 | 497097 |
9 | 12070289 |
10 | 333620001 |
11 | 9898583617 |
12 | 304816671873 |
13 | 9567029991681 |
14 | 303182221750785 |
15 | 9654673365689345 |
16 | 308196987575257089 |
17 | 9850278328626941953 |
18 | 315016627560700387329 |
19 | 10077456621734453460993 |
20 | 322429412555504845881345 |
[1,2,4,10,36,202,1827,25509,497097,12070289, 333620001,9898583617,304816671873,9567029991681, 303182221750785,9654673365689345, 308196987575257089,9850278328626941953, 315016627560700387329,10077456621734453460993, 322429412555504845881345] |