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 A051553 #10 Jul 29 2021 06:20:41 %S A051553 0,5,4,8,0,3,6,6,5,1,4,8,7,8,9,5,3,0,8,8,7,7,4,8,7,1,3,5,3,9,8,3,3,2, %T A051553 5,4,0,6,5,6,2,5,1,0,5,8,5,6,5,1,5,3,6,3,4,4,4,8,7,2,4,9,5,9,2,7,3,6, %U A051553 6,9,5,9,8,5,3,6,7,6,6,1,6,4,2,2,3,0,4,3,4,7,2,3,0,3,6,7,5,2,0,0,6 %N A051553 Decimal expansion of sin (Pi degrees). (Of course sin (Pi radians) = 0.) %e A051553 0.054803665148789530887748713539833254... [corrected by _Georg Fischer_, Jul 29 2021] %p A051553 Digits := 100: evalf(sin(Pi^2/180)); %o A051553 (PARI) sin(Pi^2/180) \\ _Charles R Greathouse IV_, Nov 05 2017 %Y A051553 Cf. A051554, A051555, A051557, A051558, A051559. %Y A051553 Cf. A086463 (Pi^2/18). %K A051553 cons,easy,nonn %O A051553 0,2 %A A051553 Hsu, Po-Wei (Benny) (arsene_lupin(AT)intekom.co.za)