n | a(n) |
---|---|
1 | 1 |
2 | 91 |
3 | 171 |
4 | 1711 |
5 | 171991 |
6 | 791911 |
7 | 1717771191 |
8 | 911977119991 |
9 | 999999911791 |
10 | 1771177919779971 |
11 | 977779999771199191 |
12 | 17979999719799917971 |
13 | 7197199171171779119991779991 |
[1,91,171,1711,171991,791911,1717771191, 911977119991,999999911791,1771177919779971, 977779999771199191,17979999719799917971, 7197199171171779119991779991] |