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 A248946 #12 Oct 20 2014 18:11:44 %S A248946 1,4,8,3,5,2,2,8,1,7,3,0,9,5,5,2,2,8,6,4,1,9,2,9,9,1,8,6,3,6,1,8,8,4, %T A248946 2,2,2,1,9,8,9,6,6,3,1,3,7,1,5,1,6,4,0,2,6,1,7,0,8,8,5,5,9,5,6,8,8,5, %U A248946 9,5,0,5,0,7,7,6,1,7,0,2,1,2,2,9,4,2,5,6,7,3,3,6,1,8,2,2,7,9,2,7,4,7,5,7,4 %N A248946 Decimal expansion of sum_{n >= 1} sin(1/n^2). %H A248946 Vaclav Kotesovec, <a href="/A248946/b248946.txt">Table of n, a(n) for n = 1..500</a> %e A248946 1.483522817309552286419299186361884222198966313715164026170885595688595... %p A248946 evalf(sum(sin(1/n^2), n=1..infinity), 120); # _Vaclav Kotesovec_, Oct 20 2014 %t A248946 (* N[Sum[Sin[1/n^2], {n, 1, Infinity}], 120], yields only 26 correct decimals *) %o A248946 (PARI) default(realprecision,120); sumpos(n=1,sin(1/n^2)) \\ _Vaclav Kotesovec_, Oct 20 2014 %Y A248946 Cf. A248945, A248947, A248949. %K A248946 nonn,easy,cons %O A248946 1,2 %A A248946 _Clark Kimberling_, Oct 18 2014