This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A114068 #8 Jan 09 2014 11:43:09 %S A114068 110,125,609,2047,4895,9819,10149,10367,18974,31269,37032,40662,42032, %T A114068 44238,44835,48125,51459,51535,52487,77425,90090,116633,129846,137865, %U A114068 145299,146566,151438,159565,161614,162334,207710,307327,357116 %N A114068 sigma(n) + phi(n) is a fourth power. %H A114068 Donovan Johnson, <a href="/A114068/b114068.txt">Table of n, a(n) for n = 1..1000</a> %e A114068 sigma(110) + phi(110) = 256 = 4^4. %o A114068 (PARI) isok(n) = ispower(sigma(n) + eulerphi(n), 4); \\ _Michel Marcus_, Jan 09 2014 %Y A114068 Cf. A065387, subsequence of A062784. %K A114068 nonn %O A114068 1,1 %A A114068 _Giovanni Resta_, Feb 13 2006