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A121969 Numbers n such that if you subtract n-reversed from n you get a natural number with the same digits as n. 2
954, 1980, 2961, 3870, 5823, 7641, 9108, 19980, 29880, 29961, 32760, 38970, 39780, 49680, 49842, 54270, 58923, 59580, 60273, 60732, 69462, 69480, 69723, 70254, 73260, 76941, 79344, 79380, 89226, 89280, 89604, 90810, 91908, 96732, 99108 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Harvey P. Dale, Table of n, a(n) for n = 1..1000

David Wells, The Penguin Dictionary of Curious and Interesting Numbers (Rev. ed. 1997), p. 154 (entry for 1980).

FORMULA

954 - 459 = 495, 19980 - 8991 = 10989

MATHEMATICA

srdQ[n_]:=Module[{idn=IntegerDigits[n], rn}, rn=FromDigits[Reverse[idn]]; n>rn&&Sort[IntegerDigits[n-rn]]==Sort[idn]]; Select[Range[100000], srdQ] (* Harvey P. Dale, Jun 21 2013 *)

CROSSREFS

Cf. A055161.

Sequence in context: A096954 A048267 A073500 * A203024 A055161 A055158

Adjacent sequences:  A121966 A121967 A121968 * A121970 A121971 A121972

KEYWORD

base,nonn

AUTHOR

Tanya Khovanova, Sep 04 2006

STATUS

approved

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Last modified April 23 17:46 EDT 2014. Contains 240946 sequences.