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Search: id:A147822
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| A147822 |
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Minimum number k for which the digital sum of k*n is 2n. |
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+0
10
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| 0, 2, 2, 2, 2, 11, 8, 11, 11, 11, 299, 209, 74, 146, 407, 533, 623, 587, 1111, 2621, 29999, 3809, 20909, 13043, 29162, 119999, 38423, 37037, 178571, 241031, 2333333, 645158, 1874684, 2030303, 2352647
(list; graph; listen)
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OFFSET
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0,2
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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=2*n then ok:=0; print(j); fi; od; od; end: P(100);
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CROSSREFS
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A147823-A147831
Sequence in context: A165466 A112727 A164918 this_sequence A084961 A029643 A100687
Adjacent sequences: A147819 A147820 A147821 this_sequence A147823 A147824 A147825
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KEYWORD
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easy,nonn,base
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AUTHOR
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Paolo P. Lava & Giorgio Balzarotti (ppl(AT)spl.at), Nov 14 2008
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EXTENSIONS
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Edited by Charles R Greathouse IV (charles.greathouse(AT)case.edu), Nov 01 2009
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