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A051020
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Numbers that are 4-persistent but not 5-persistent.
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9
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1053274689, 1089467253, 1253094867, 1267085493, 1268547309, 1269085473, 1273085469, 1308547269, 1308549267, 1326854907, 1327068549, 1328746905, 1450687329, 1450732869, 1450867293, 1450928673, 1452687309, 1452690873
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OFFSET
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1,1
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COMMENTS
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A number n is k-persistent iff all of {n, 2*n, ..., k*n} are pandigital (in the sense of A171102).
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LINKS
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PROG
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(PARI) is_A051020(n)=for(i=1, 5, 9<#Set(Vec(Str(i*n))) || return(i>4)) \\ M. F. Hasler, Jan 10 2012
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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Definition corrected by Franklin T. Adams-Watters, Jan 09 2012
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STATUS
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approved
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