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 A061046 #16 Jul 07 2017 03:37:45 %S A061046 36,9,12,144,900,1,1764,576,324,225,4356,48,6084,441,300,2304,10404, %T A061046 81,12996,3600,196,1089,19044,192,22500,1521,2916,7056,30276,75,34596, %U A061046 9216,484,2601,44100,1296,49284,3249,2028,14400,60516,147,66564,17424,8100,4761,79524,256,86436,5625,3468,24336,101124,729,108900,28224,4332,7569,125316,400,133956,8649,15876,36864,152100,363,161604,41616,6348,11025,181476,5184 %N A061046 Denominator of 1/36 - 1/n^2. %H A061046 Reinhard Zumkeller, <a href="/A061046/b061046.txt">Table of n, a(n) for n = 1..10000</a> %t A061046 Denominator[1/36-1/Range[80]^2] (* _Harvey P. Dale_, Feb 06 2012 *) %o A061046 (Haskell) %o A061046 import Data.Ratio ((%), denominator) %o A061046 a061046 = denominator . (1 % 36 -) . recip . (^ 2) . fromIntegral %o A061046 -- _Reinhard Zumkeller_, Jan 06 2014 %o A061046 (PARI) for(n=6,50, print1(denominator(1/6^2 - 1/n^2), ", ")) \\ _G. C. Greubel_, Jul 07 2017 %Y A061046 See A061045 for numerators and further information. Cf. A061035-A061050. %K A061046 nonn,frac %O A061046 1,1 %A A061046 _N. J. A. Sloane_, May 26 2001