trizen
7ea6dd432d
new file: oeis-research/Erich Friedman/Squares that remain squares if you decrease every digit by 1/b061844.txt
|
5 months ago | |
|---|---|---|
| .. | ||
| Least number k such that sigma(sigma(k) * k) > n * sigma(k) * k | 5 months ago | |
|
trizen
7ea6dd432d
new file: oeis-research/Erich Friedman/Squares that remain squares if you decrease every digit by 1/b061844.txt
|
5 months ago | |
|---|---|---|
| .. | ||
| Least number k such that sigma(sigma(k) * k) > n * sigma(k) * k | 5 months ago | |