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 A363679 #19 Aug 22 2023 11:58:12 %S A363679 2,3,9,4,8,3,3,0,9,9,2,7,3,4,0,4,7,1,6,5,2,2,6,3,2,6,3,6,4,3,6,3,7,3, %T A363679 1,5,1,9,6,8,6,3,7,0,0,7,0,9,1,3,6,2,4,4,4,7,2,6,7,9,7,5,6,3,8,5,7,2, %U A363679 9,5,5,5,9,4,8,3,3,3,3,4,6,4,0,5,2,4,5,5,9,4,9,9,7,1,2,3,1,5,0,7,8,9,2,5,2,2,3,6,9,3,1,1,0,3,7,8,4,9,6,1 %N A363679 Decimal expansion of the sum of the reciprocals of triangular polygorials A006472. %F A363679 Equals BesselI(1, 2*sqrt(2))/sqrt(2). %e A363679 2.3948330992734047165226326364363731519686370070913624447267975638... %t A363679 RealDigits[BesselI[1, 2 Sqrt[2]]/Sqrt[2] 10, 120][[1]] %Y A363679 Cf. A001113 (of factorials), A070910 (of factorials squared). %Y A363679 Cf. A365077 (continued fraction). %Y A363679 Cf. A006472. %K A363679 nonn,cons %O A363679 1,1 %A A363679 _Kelvin Voskuijl_, Aug 17 2023