A023051 - OEIS

%I #22 Aug 05 2021 15:31:07

%S 6963472309248,12625136269928,21131226514944,26059452841000,

%T 55707778473984,74213505639000,95773976104625,101001090159424,

%U 159380205560856,169049812119552,174396242861568,188013752349696

%N Numbers that are the sum of two positive cubes in at least four ways (all solutions).

%D R. K. Guy, Unsolved Problems in Number Theory, D1.

%H Uwe Hollerbach, <a href="/A023051/b023051.txt">Table of n, a(n) for n=1..16939</a>

%H Uwe Hollerbach, <a href="http://www.korgwal.com/ramanujan/">Taxi, Taxi!</a> [Original link, broken]

%H Uwe Hollerbach, <a href="http://web.archive.org/web/20120203221114/http://www.korgwal.com/ramanujan">Taxi, Taxi!</a> [Replacement link to Wayback Machine]

%H Uwe Hollerbach, <a href="/A003825/a003825.html">Taxi! Taxi!</a> [Cached copy from Wayback Machine, html version of top page only]

%H D. W. Wilson, <a href="https://cs.uwaterloo.ca/journals/JIS/wilson10.html">The Fifth Taxicab Number is 48988659276962496</a>, J. Integer Sequences, Vol. 2, 1999, #99.1.9.

%Y Cf. A001235, A003826, A011541, A018787, A023050, A025295, A051167, A343968, A345865.

%K nonn

%O 1,1

%A _David W. Wilson_ (revised Oct 15 1997)

%E b-file extended by _Ray Chandler_, Jan 19 2009