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 A227650 #4 Jul 19 2013 06:04:44 %S A227650 9,16,25,27,32,36,49,64,81,100,121,125,128,144,169,196,216,225,243, %T A227650 256,289,324,400,441,512,729,784,900,961,1000,1024,1089,1156,1296, %U A227650 1369,1444,1521,1600,1681,1728,1764,2048,2187,2197,2209,2304,2916,3125,3844,4356 %N A227650 Perfect powers equal to the sum of 9 factorial numbers. %C A227650 a(178), if it exists, is larger than 10^100. %H A227650 Giovanni Resta, <a href="/A227650/b227650.txt">Table of n, a(n) for n = 1..177</a> (terms < 10^100) %H A227650 Giovanni Resta, <a href="/A227650/a227650.txt">Decompositions for a(1)-a(177)</a> %e A227650 1815848 = 122^3 = 2! + 3! + 6! + 6! + 9! + 9! + 9! + 9! + 9!. %Y A227650 Cf. A114377, A227644-A227651. %K A227650 nonn %O A227650 1,1 %A A227650 _Giovanni Resta_, Jul 19 2013