trizen 7ea6dd432d new file: oeis-research/Erich Friedman/Squares that remain squares if you decrease every digit by 1/b061844.txt hai 6 meses
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upper-bounds.pl 7ea6dd432d new file: oeis-research/Erich Friedman/Squares that remain squares if you decrease every digit by 1/b061844.txt hai 6 meses