A069746 Four-digit numbers that do not resolve to 6174 under the Kaprekar map (see A151949).

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

Offset: 1

Author

Harvey P. Dale, Apr 22 2002

Keywords

• fini
• full
• nonn
• base

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.

Extensions

There are precisely 77 such numbers.