n | a(n) |
---|---|
1 | 4 |
2 | 5 |
3 | 55 |
4 | 322 |
5 | 1802 |
6 | 9888 |
7 | 54152 |
8 | 296677 |
9 | 1626316 |
10 | 8921034 |
11 | 48940217 |
12 | 268458544 |
13 | 1472546593 |
14 | 8077208658 |
15 | 44305328871 |
16 | 243025038817 |
17 | 1333048565463 |
18 | 7312079889715 |
19 | 40108451658226 |
20 | 220004139643941 |
21 | 1206773599084364 |
[4,5,55,322,1802,9888,54152,296677,1626316, 8921034,48940217,268458544,1472546593,8077208658, 44305328871,243025038817,1333048565463, 7312079889715,40108451658226,220004139643941, 1206773599084364] |