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

 

Logo

Invitation: celebrating 50 years of OEIS, 250000 sequences, and Sloane's 75th, there will be a conference at DIMACS, Rutgers, Oct 9-10 2014.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A053902 Numbers n such that n^2 contains only digits {1,5,6}. 1
1, 4, 34, 81, 334, 746, 2581, 3334, 12869, 33334, 39581, 81619, 333334, 1245454, 1249666, 3333334, 12496666, 33333334, 333333334, 2261749666, 3333333334, 3939100869, 12851113246, 22706069919, 33333333334, 78493000746 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..26.

P. De Geest, Squares containing at most three distinct digits, Index entries for related sequences

Author?, Source(txt)

CROSSREFS

Cf. A053903.

Sequence in context: A057959 A220168 A227397 * A054464 A002101 A241231

Adjacent sequences:  A053899 A053900 A053901 * A053903 A053904 A053905

KEYWORD

nonn,base

AUTHOR

Patrick De Geest, Mar 15 2000.

EXTENSIONS

More terms from C. Ronaldo (aga_new_ac(AT)hotmail.com), Jan 03 2005

STATUS

approved

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

Content is available under The OEIS End-User License Agreement .

Last modified July 28 00:26 EDT 2014. Contains 244987 sequences.