

A101706


Numbers n such that reversal(n)=(7/3)*n.


5



0, 3267, 32967, 329967, 3299967, 32673267, 32999967, 326703267, 329999967, 3267003267, 3296732967, 3299999967, 32670003267, 32967032967, 32999999967, 326700003267, 326732673267, 329670032967, 329967329967, 329999999967, 3267000003267, 3267329673267, 3296700032967, 3299670329967, 3299999999967
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OFFSET

1,2


COMMENTS

If m is in the sequence then all numbers of the form g(m,s,t) for nonnagative integers s and t are in the sequence (the function g has been defined in the sequence A101704), for example g(3267,1,1)= 326703267 is in the sequence. If n=0 or n>1 then 33*(10^n1) is in the sequence.
There are Fibonacci(floor((n2)/2)) terms with n digits, n>1 (this is essentially A103609).  Ray Chandler, Oct 12 2017


LINKS

Ray Chandler, Table of n, a(n) for n = 1..10000


EXAMPLE

g(3267,10,2) = 32670000000000326700000000003267 is in the sequence
because reversal(32670000000000326700000000003267) =
76230000000000762300000000007623 =
(7/3)*32670000000000326700000000003267, g(3267,0,4) =
32673267326732673267 is in the sequence because
reversal(32673267326732673267) = 76237623762376237623 =
(7/3)*32673267326732673267.


MATHEMATICA

Do[If[FromDigits[Reverse[IntegerDigits[n]]] == (7/3)*n, Print[n]], {n, 100000000}]


CROSSREFS

Cf. A101704, A101705, A001232, A008918.
Sequence in context: A328148 A286008 A220594 * A251273 A184204 A031820
Adjacent sequences: A101703 A101704 A101705 * A101707 A101708 A101709


KEYWORD

base,nonn


AUTHOR

Farideh Firoozbakht, Jan 01 2005


EXTENSIONS

Terms a(8) onward from Max Alekseyev, Aug 18 2013


STATUS

approved



