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 A331094 #25 Feb 05 2020 21:33:20 %S A331094 2,1,3,0,7,8,9,7,3,6,5,7,2,8,6,4,7,5,8,1,2,3,0,3,9,5,7,5,0,0,6,2,2,1, %T A331094 1,7,6,0,8,3,6,9,5,9,8,6,5,3,7,2,6,7,8,9,6,9,5,6,8,5,8,9,5,1,7,0,1,9, %U A331094 2,4,3,3,9,5,1,5,0,7,6,5,4,7,2,0,1,1,6,2,2,9,0,7,3,4,8,9,0,1,3,9 %N A331094 Decimal expansion of Pi^Pi - e^e. %e A331094 21.30789736572864758123039575006221176... %t A331094 RealDigits[Pi^Pi - Exp[E], 10, 100][[1]] (* _Amiram Eldar_, Jan 09 2020 *) %o A331094 (PARI) Pi^Pi - exp(exp(1)) \\ _Michel Marcus_, Jan 09 2020 %Y A331094 Cf. A073233, A073226, A331189. %K A331094 nonn,cons %O A331094 2,1 %A A331094 _Ahmad J. Masad_, Jan 08 2020