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A004284
Least positive multiple of n written in base 4 using only 0 and 1.
2
1, 10, 111, 10, 11, 1110, 111, 100, 1101, 110, 11111, 1110, 1001, 1110, 111111, 100, 101, 11010, 100111, 110, 111, 111110, 1011, 11100, 11011, 10010, 1101, 1110, 10011, 1111110, 11111, 1000, 101001, 1010, 111111, 11010, 1001111
OFFSET
1,2
LINKS
MATHEMATICA
lpm4[n_]:=Module[{k=1}, While[Rest[Most[DigitCount[n k, 4]]]!={0, 0}, k++]; FromDigits[IntegerDigits[n k, 4]]]; Array[lpm4, 40] (* Harvey P. Dale, Dec 22 2012 *)
CROSSREFS
Sequence in context: A282412 A282679 A086996 * A119484 A281749 A282364
KEYWORD
nonn,base
STATUS
approved