|
|
A116065
|
|
Numbers n, not ending in 0, such that n times its digital reverse gives a number made of nontrivial runs of identical digits.
|
|
0
|
|
|
88, 385, 583, 1426, 5929, 6241, 9295, 284213, 312482, 1001099, 9901001, 15046244, 44264051, 101127144, 176452305, 220741304
(list;
graph;
refs;
listen;
history;
text;
internal format)
|
|
|
OFFSET
|
1,1
|
|
COMMENTS
|
A run of length 1 is trivial.
Neither n nor (n times its digital reverse) may end in zero. [From Harvey P. Dale, Jan 04 2012]
|
|
LINKS
|
|
|
EXAMPLE
|
15046244 * 44364051 = 666007711774444.
|
|
MATHEMATICA
|
okQ[n_]:=Module[{idn=IntegerDigits[n], revnt}, revnt=n FromDigits[Reverse[ idn]]; Last[idn]!=0&&Last[IntegerDigits[revnt]]!=0&&Min[Length/@Split[ IntegerDigits[revnt]]]>1]; Select[Range[225000000], okQ] (* Harvey P. Dale, Jan 04 2012 *)
|
|
CROSSREFS
|
|
|
KEYWORD
|
nonn,base
|
|
AUTHOR
|
|
|
STATUS
|
approved
|
|
|
|