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

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A054035 Numbers n such that n^2 contains exactly 7 different digits. 10
1017, 1023, 1024, 1027, 1028, 1036, 1037, 1042, 1113, 1117, 1164, 1175, 1176, 1197, 1228, 1267, 1268, 1277, 1302, 1307, 1323, 1328, 1343, 1352, 1355, 1375, 1395, 1405, 1428, 1433, 1441, 1442, 1444, 1463, 1541, 1593, 1594, 1628, 1646, 1648, 1701, 1706 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

John Cerkan, Table of n, a(n) for n = 1..10000

MAPLE

f := []; for i from 0 to 200 do if nops({op(convert(i^2, base, 10))})=7 then f := [op(f), i] fi; od; f;

MATHEMATICA

Select[Range[2000], Count[DigitCount[#^2], 0]==3&] (* Harvey P. Dale, Jul 28 2012 *)

CROSSREFS

Cf. A016069, A054031, A054032, A054033, A054034, A054036, A054037, A054038, A054039.

Sequence in context: A221808 A202905 A213314 * A087837 A235811 A051982

Adjacent sequences:  A054032 A054033 A054034 * A054036 A054037 A054038

KEYWORD

nonn,base

AUTHOR

Asher Auel (asher.auel(AT)reed.edu) Feb 29 2000

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified June 24 05:50 EDT 2017. Contains 288697 sequences.