n | a(n) |
---|---|
0 | 20 |
1 | 61 |
2 | 142 |
3 | 203 |
4 | 751 |
5 | 954 |
6 | 4567 |
7 | 14655 |
8 | 33877 |
9 | 455056 |
10 | 4584437 |
11 | 60052737 |
12 | 124689911 |
13 | 434122470 |
14 | 1861179791 |
15 | 2295302261 |
16 | 8747086574 |
17 | 11042388835 |
18 | 30831864244 |
19 | 103537981567 |
20 | 4172351126924 |
21 | 12620591362339 |
[20,61,142,203,751,954,4567,14655,33877,455056, 4584437,60052737,124689911,434122470,1861179791, 2295302261,8747086574,11042388835,30831864244, 103537981567,4172351126924,12620591362339] |