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A051020 Numbers that are 4-persistent but not 5-persistent. 9
1053274689, 1089467253, 1253094867, 1267085493, 1268547309, 1269085473, 1273085469, 1308547269, 1308549267, 1326854907, 1327068549, 1328746905, 1450687329, 1450732869, 1450867293, 1450928673, 1452687309, 1452690873 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A number n is k-persistent iff all of {n, 2n,..., kn} are pandigital (in the sense of A171102).

LINKS

Hans Havermann, Table of n, a(n) for n = 1..1000

Eric Weisstein's World of Mathematics, Persistent Number

PROG

(PARI) is_A051020(n)=for(i=1, 5, 9<#Set(Vec(Str(i*n))) || return(i>4)) \\ - M. F. Hasler, Jan 10 2012

CROSSREFS

Cf. A171102 (pandigital), A204047 (smallest n-persistent), A051264 (1-persistent), A051018 (2-persistent), A051019 (3-persistent), A204096 (5-persistent), A204097 (6-persistent).

Sequence in context: A222531 A167476 A051019 * A221262 A115940 A241812

Adjacent sequences:  A051017 A051018 A051019 * A051021 A051022 A051023

KEYWORD

nonn,base

AUTHOR

Eric W. Weisstein

EXTENSIONS

Definition corrected by Franklin T. Adams-Watters, Jan 09 2012

Sequence corrected by Hans Havermann, Jan 11 2012

STATUS

approved

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Last modified August 21 17:55 EDT 2017. Contains 290893 sequences.