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A051019
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Numbers that are 3-persistent but not 4-persistent.
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9
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1052674893, 1052687493, 1052746893, 1052748693, 1052867493, 1052874693, 1053267489, 1053268749, 1053274869, 1053286749, 1053287469, 1065273489, 1065287349, 1067285493, 1067328549, 1068547293, 1068547329, 1068549273
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| A number n is k-persistent iff all of {n, 2n,..., kn} are pandigital (in the sense of A171102).
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LINKS
| Eric Weisstein's World of Mathematics, Persistent Number
Hans Havermann, Table of n, a(n) for n = 1..1000
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PROG
| (PARI) is_A051019(n)=for(i=1, 4, 9<#Set(Vec(Str(i*n))) | return(i>3)) \\ M. F. Hasler, Jan 10 2012
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CROSSREFS
| Cf. A171102 (pandigital), A204047 (smallest n-persistent), A051264 (1-persistent), A051018 (2-persistent), A051020 (4-persistent), A204096 (5-persistent), A204097 (6-persistent).
Sequence in context: A035124 A197952 A167476 * A051020 A115940 A049446
Adjacent sequences: A051016 A051017 A051018 * A051020 A051021 A051022
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KEYWORD
| nonn,base
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AUTHOR
| Eric Weisstein (eric(AT)weisstein.com)
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EXTENSIONS
| Definition corrected by Franklin T. Adams-Watters (FrankTAW(AT)Netscape.net), Jan 09 2012
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