n | a(n) |
---|---|
0 | 1 |
1 | 121 |
2 | 121122121 |
3 | 121122121121122122121122121 |
4 | 121122121121122122121122121121122121121122122121122122121122121121122122121122121 |
[1,121,121122121,121122121121122122121122121, 12112212112112212212112212112112212112112212212112\ 2122121122121121122122121122121] |