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 A141393 #5 Jan 22 2014 06:00:09 %S A141393 1,7,25,33,84,294,462,750,1155,1705,2431,3017,18130,19684,22052,28996, %T A141393 36907,45925,61957,71309,168889,471799,9998261,11975939,21577709, %U A141393 29764925,853783375,1388314375,1438304875,2710683875,2741707205,62802867395,72342543455 %N A141393 a(n) is the smallest number, larger than the previous, such that the RMS (Root Mean Square) of a(0) through a(n) is an integer. %C A141393 Actual RMS values are given by A141394. %H A141393 Giovanni Resta, <a href="/A141393/b141393.txt">Table of n, a(n) for n = 0..100</a> %Y A141393 Cf. A141391, A141392, A141394, A140480. %K A141393 nonn %O A141393 0,2 %A A141393 _Andrew Weimholt_, Jun 29 2008 %E A141393 a(22)-a(32) from _Giovanni Resta_, Jan 22 2014