login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A083405 Odd numbers which can be expressed as the product of a number and its reversal in at least two different ways. 1

%I #17 Aug 01 2019 01:14:34

%S 12494209,448583733,494167063,547084993,851529915,1191394449,

%T 1213031209,1338416599,1343524977,1464607989,2064820905,34509780333,

%U 36738861453,38016529663,39118059873,40127419683,42087533593,43093084603,43754503723,43948961613

%N Odd numbers which can be expressed as the product of a number and its reversal in at least two different ways.

%D S. S. Gupta, EPRNs, Science Today, Feb. 1987, India.

%H Hans Havermann, <a href="/A083405/b083405.txt">Table of n, a(n) for n = 1..343</a>

%H Shyam Sunder Gupta, <a href="http://www.shyamsundergupta.com/eporns.htm">EPRN Numbers</a>.

%e 12494209 = 13143 * 34131 = 31341 * 14313, 1191394449 = 12369 * 96321 = 30783 * 38707, etc.

%Y Cf. A066531.

%K nonn,base

%O 1,1

%A _Shyam Sunder Gupta_, Jun 07 2003

%E More terms from _Hans Havermann_, Feb 11 2012

%E Definition corrected by _N. J. A. Sloane_, Aug 01 2019

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 24 04:14 EDT 2024. Contains 371918 sequences. (Running on oeis4.)