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

 

Logo

Many excellent designs for a new banner were submitted. We will use the best of them in rotation.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A071249 GCD(n, R(n)) > 1, where R(n) (A004086) is the digit reversal of n. 4
2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 15, 18, 20, 21, 22, 24, 26, 27, 28, 30, 33, 36, 39, 40, 42, 44, 45, 46, 48, 50, 51, 54, 55, 57, 60, 62, 63, 64, 66, 68, 69, 70, 72, 75, 77, 78, 80, 81, 82, 84, 86, 87, 88, 90, 93, 96, 99, 101, 102, 105, 108, 110, 111, 114, 117, 120, 121 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A055483(a(n)) > 1. - Reinhard Zumkeller, Jun 18 2013

LINKS

Reinhard Zumkeller, Table of n, a(n) for n = 1..10000

MATHEMATICA

Select[ Range[125], GCD[ #, FromDigits[ Reverse[ IntegerDigits[ # ]]]] > 1 & ]

PROG

(Haskell)

a071249 n = a071249_list !! (n-1)

a071249_list = filter ((> 1) . a055483) [1..]

-- Reinhard Zumkeller, Jun 18 2013

CROSSREFS

Cf. A226778 (complement).

Sequence in context: A182175 A128870 A154771 * A084433 A084434 A034709

Adjacent sequences:  A071246 A071247 A071248 * A071250 A071251 A071252

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, May 21 2002

EXTENSIONS

Edited by Robert G. Wilson v, Jun 07 2002

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 April 18 06:39 EDT 2014. Contains 240706 sequences.