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A147826
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Minimum number k for which the digital sum of k*n is 6*n.
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3
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0, 6, 24, 33, 222, 1599, 3333, 11427, 87486, 111111, 6999999, 6090909, 24999999, 69076923, 357142857, 3333333333, 6249999993, 29411764647, 111111111111, 421047368421, 24999999999999, 9047619047619, 159090909090909, 217391304347826, 1666666666666662, 15999999999999999
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OFFSET
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0,2
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LINKS
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MAPLE
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P:=proc(i) local j, k, n, ok, w; for n from 0 by 1 to i do j:=-1; ok:=1; while ok=1 do j:=j+1; w:=0; k:=n*j; while k>0 do w:=w+k-(trunc(k/10)*10); k:=trunc(k/10); od; if w=6*n then ok:=0; print(j); fi; od; od; end: P(100);
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PROG
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(PARI) a(n) = {my(k = 0); while (sumdigits(k*n) != 6*n, k++); k; }; \\ Michel Marcus, Mar 21 2016
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CROSSREFS
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KEYWORD
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easy,nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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