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Search: id:A088343
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| 1, 2, 5, 9, 10, 22, 25, 26, 110, 998, 1158, 1410, 9860, 100270, 999100, 1005274, 1007044, 1055274, 1059163, 1063242, 1065027, 1083148, 1099446, 1103722, 1144506, 10146315, 99992456, 99997120
(list; graph; listen)
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OFFSET
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1,2
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COMMENT
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A069862 is the smallest k such that n divides the concatenation of numbers from (n+1) to (n+k), where (n+1) is on the most significant side. - Robert G. Wilson v (rgwv(AT)rgwv.com), Nov 14 2003
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LINKS
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C. Seggelin, Concatenation of Consecutive Integers.
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MATHEMATICA
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f[n_] := Block[{k = n + 1}, d = k; While[ d != 0, k++; d = Mod[d*10^Floor[ Log[10, k] + 1] + k, n]]; k - n]; a = 0; Do[b = f[n]; If[b > a, a = b; Print[n, " = ", b]], {n, 1, 34500}]
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CROSSREFS
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Cf. A069862, A088947.
Sequence in context: A046711 A095347 A159073 this_sequence A110781 A115248 A005123
Adjacent sequences: A088340 A088341 A088342 this_sequence A088344 A088345 A088346
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KEYWORD
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nonn,more
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AUTHOR
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N. J. A. Sloane (njas(AT)research.att.com), Nov 14 2003
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EXTENSIONS
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More terms from Robert G. Wilson v (rgwv(AT)rgwv.com) and Chuck Seggelin (chuck(AT)plastereddragon.com), Nov 14 2003
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