login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A161020 All the non-repdigit terms of A160818. 1
370, 407, 481, 518, 592, 629, 370370, 407407, 481481, 518518, 592592, 629629, 370370370, 407407407, 456790123, 469135802, 481481481, 493827160, 506172839, 518518518, 530864197, 543209876, 592592592, 629629629, 370370370370 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

All known terms are multiples of 111/3 = 37.

Non-repdigit numbers n such that ((10^A055642(n)-1)/9)*(A007953(n)/A055642(n)) = n. So the sequence is infinite. - Altug Alkan, Sep 05 2016

LINKS

Table of n, a(n) for n=1..25.

EXAMPLE

For example with 370: (073+037+307+370+703+730)/6 = 370.

MAPLE

read("transforms3") ; isrep := proc(n) if nops(convert(convert(n, base, 10), set)) = 1 then true; else false; fi; end: a160818 := BFILETOLIST("b160818.txt") ; for i from 1 to 400 do a := op(i, a160818) ; if not isrep(a) then printf("%d, ", a) ; fi; od: # R. J. Mathar, Jul 04 2009

CROSSREFS

Cf. A160818, A275772, A275945.

Sequence in context: A108772 A224562 A276413 * A102618 A225104 A234985

Adjacent sequences:  A161017 A161018 A161019 * A161021 A161022 A161023

KEYWORD

base,nonn

AUTHOR

Johan Särnbratt, Jun 02 2009

EXTENSIONS

More terms from R. J. Mathar, Jul 04 2009

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified June 25 12:55 EDT 2019. Contains 324352 sequences. (Running on oeis4.)