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 A374322 #21 Jul 05 2024 02:25:18 %S A374322 3,1,4,1,5,9,2,7,3,0,0,1,3,3,0,5,6,6,0,3,1,3,9,9,6,1,8,9,0,2,5,2,1,5, %T A374322 5,1,8,5,9,9,5,8,1,6,0,7,1,1,0,0,3,3,5,5,9,6,5,6,5,3,6,2,9,0,1,2,8,5, %U A374322 5,1,4,5,5,4,4,1,3,2,1,6,4,2,7,4,0,8,5,4,0,8 %N A374322 Decimal expansion of sqrt(2)*9801/4412. %C A374322 Approximates Pi, correct to 7 digits. %H A374322 Paolo Xausa, <a href="/A374322/b374322.txt">Table of n, a(n) for n = 1..10000</a> %H A374322 David H. Bailey and Jonathan M. Borwein, <a href="https://www.ams.org/notices/200505/fea-borwein.pdf">Experimental Mathematics: Examples, Methods and Implications</a>, Notices of the American Mathematical Society, May 2005, Vol. 52, No. 5, p. 511. %H A374322 Jonathan M. Borwein, <a href="https://doi.org/10.1007/s10758-005-5216-x">The Experimental Mathematician: the Pleasure of Discovery and the Role of Proof</a>, International Journal of Computers for Mathematical Learning, Vol. 10 (2005), p. 97. %H A374322 <a href="/index/Ph#Pi314">Index entries for sequences related to the number Pi</a> %e A374322 3.1415927300133056603139961890252155185995816071100335596565... %t A374322 First[RealDigits[Sqrt[2]*9801/4412, 10, 100]] %o A374322 (Python) %o A374322 from math import isqrt %o A374322 def A374322(n): return isqrt(10**(n-1<<1)*96059601//9732872)%10 # _Chai Wah Wu_, Jul 04 2024 %Y A374322 Cf. A000796, A002193, A068028, A068079, A068089, A253214. %K A374322 nonn,cons %O A374322 1,1 %A A374322 _Paolo Xausa_, Jul 04 2024