n | a(n) |
---|---|
1 | 7 |
2 | 54 |
3 | 490 |
4 | 4050 |
5 | 32674 |
6 | 261954 |
7 | 2096770 |
8 | 16776450 |
9 | 134216194 |
10 | 1073738754 |
11 | 8589928450 |
12 | 68719464450 |
13 | 549755789314 |
14 | 4398046461954 |
15 | 35184371990530 |
16 | 281474976514050 |
17 | 2251799813292034 |
18 | 18014398508695554 |
19 | 144115188074283010 |
20 | 1152921504603701250 |
[7,54,490,4050,32674,261954,2096770,16776450, 134216194,1073738754,8589928450,68719464450, 549755789314,4398046461954,35184371990530, 281474976514050,2251799813292034, 18014398508695554,144115188074283010, 1152921504603701250] |