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A069746 Four-digit numbers that do not resolve to 6174 under the Kaprekar map (see A151949). 8
1000, 1011, 1101, 1110, 1111, 1112, 1121, 1211, 1222, 2111, 2122, 2212, 2221, 2222, 2223, 2232, 2322, 2333, 3222, 3233, 3323, 3332, 3333, 3334, 3343, 3433, 3444, 4333, 4344, 4434, 4443, 4444, 4445, 4454, 4544, 4555, 5444, 5455, 5545, 5554, 5555, 5556 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Dinesh Thakur (email, Mar 01 2015) points out that Kaprekar himself would pad numbers with fewer than four digits by adding initial zeros, so that for him the only four-digit exceptions are those with all four digits equal. - N. J. A. Sloane, Mar 01 2015

LINKS

Joseph Myers, Table of n, a(n) for n=1..77 (the full list)

Index entries for the Kaprekar map

CROSSREFS

Cf. A151949.

Sequence in context: A169734 A213317 A281150 * A291346 A191753 A033830

Adjacent sequences:  A069743 A069744 A069745 * A069747 A069748 A069749

KEYWORD

fini,full,nonn,base

AUTHOR

Harvey P. Dale, Apr 22 2002

EXTENSIONS

There are precisely 77 such numbers.

STATUS

approved

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Last modified September 24 18:42 EDT 2017. Contains 292433 sequences.