A133220 a(n) is the smallest positive number k such that k and n*k are anagrams.
1, 125874, 1035, 1782, 142857, 1386, 1359, 113967, 1089
Offset: 1
Examples
3*1035 = 3105 and this is the smallest such number.
Programs
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Mathematica
Table[Select[Range[1000000], Sort[IntegerDigits[ # ]] == Sort[IntegerDigits[n# ]] &][[1]], {n, 9}]